SOLVING SIMPLE EQUATIONS

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by Kameisha Erskine1 view·Updated Aug 5, 2020
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  1. take a look at the pair off wedding plans.
  2. Unrelated. Notice that the £2 are levels or balance foreign
  3. equation. Each pan would represent the sides of off on
  4. equation. If the tool sides are similar to the seesaw
  5. on the right out off balance, then it can no
  6. longer be considered on equation.
  7. No, the Levin sides must equal right inside.
  8. But well, we can maintain equality for balance in an
  9. equations by I didn't the same quantity toe board size,
  10. subtracting the same quantity from your side, multiplying the same
  11. quantity for both sides, dividing the same quantity Toe board
  12. size my Whenever we are solve in simple equations, we
  13. usually group the unknowns toe the left hand side on
  14. the numbers on the right.
  15. Inside our vice reversal, which means unknown on the right
  16. on numbers on the left, deciding on which to do
  17. well based will be best on the given equation.
  18. We can do this by undoing the basic operation.
  19. On the unknown are the numbers we want to move
  20. right Prezi toe undergo a based operation.
  21. We must a fly the opposite off that operation with
  22. the same wanted day as we know admission is opposite
  23. off. Anybody can guess, is your answer subtraction?
  24. Then you're so correct.
  25. Similarly, multiplication is the opposite off off.
  26. Once here and said division or you are doing a
  27. fabulous job equation with one basic operation can be solved
  28. in one step.
  29. By undoing that operation, Remember, balance is maintained when the
  30. change on one side is also applied to the all
  31. the side off the equation.
  32. Let's look, let's look at some examples.
  33. You are asked to solve the following simple equations.
  34. Again. You can pause the video on Attempt the solution,
  35. after which you can on pause for us to go
  36. through the solutions.
  37. Remember toe do by applying the opposite operation removed plus
  38. or from the left side.
  39. We undo by changing the opposite, which is stuff the
  40. tracks. Four fossil notices notice it is a flying to
  41. both sides when we simplify the unknown.
  42. Why, as a value up by, we apply the same
  43. principles as the previous question.
  44. So K is equal Joe to also for this equation.
  45. We want to remove negative seven by adding step.
  46. This change is done to both sides to maintain balance
  47. when we simplify, M is Kiefer to 17 when we
  48. meant end of violence.
  49. We noticed your s that we have a negative 20
  50. on opposite.
  51. Off minus is Harry Sean, and we must balance.
  52. So we changed the negative tools.
  53. On addition, so answers the 21.
  54. The opposite of modification is division also.
  55. So when we divide so into six, we get three
  56. ourselves, huh?
  57. Like equation with one basic operation can be some in
  58. one stay.
  59. But I'm doing that Operation toe.
  60. Ensure balances maintain the change must also be applied to
  61. the other side of the equation.
  62. Students these remember the ones that seven in to think
  63. equation with tools to basic operation can be sucked in
  64. two steps.
  65. By undoing both operations, these operations are usually different, such
  66. as an equation with multiple on additions or division on
  67. additions. Since there are two different operations, we must understand
  68. order to which we will undo these operations to sub
  69. for the unknown.
  70. The acronym for the order may very based on school
  71. or teacher.
  72. We will look at been mass as we know we
  73. do brackets.
  74. First, we follow the arrows as to the order to
  75. complete the other operations so under one operation, we will
  76. in the opposite direction as the order of operation.
  77. Let us look at a few examples.
  78. Even you have a few minutes we are given it.
  79. It's B plus five equals 29 They based on the
  80. order of operation, we multiply before addition.
  81. So undo.
  82. We remove Add before multi fine.
  83. For this example we undo other five.
  84. We do so by subtracting by the same is done
  85. toe the other side to maintain balance.
  86. When we simplify, we now have.
  87. It's being equal 24.
  88. We must undergo multiplication by dividing by.
  89. Can anybody tell me if your answer is it that
  90. you are absolutely curry?
  91. But remember the same change must be done to the
  92. other side.
  93. We will simplified.
  94. So the results we get is be up 13 Now
  95. we have three X minus six equal 15 again following
  96. all of operation We have multiplication Onda subtraction, toe undo
  97. We removed minus six By adding C.
  98. The same is also done to the right hon time
  99. as we can't seem here when we simplifies, we have
  100. three X equals 21 No, we use we then undo
  101. multiply by three by asked by dividing by three cement
  102. and balance.
  103. We do the same on the right size.
  104. The result we obtain is X equal seven.
  105. The last problem is five plus y divided by six
  106. equal 17.
  107. We can use the competent.
  108. It'd ve property to real to rewrite the left Inside.
  109. This method is optional.
  110. We have divide on dhe addition as our two operations
  111. to undo, we must first undergo additions by subtracted by
  112. five. As we can see, the same is done to
  113. the right sign.
  114. When we simplify, we have why divided by six equal
  115. eggs now toe undo divide by six We must want
  116. apply by six on fourth sign.
  117. As we can see here we can then simply fine
  118. therefore or result is why equal court is Let us
  119. therefore answers guys, When we check our answers, we want
  120. to know whether the value is valid or true.
  121. Best on or given equations we conduct the check by
  122. substitution are substituting the answer we get for the unknown
  123. or letter If the left inside equal right inside then
  124. the answer is value.
  125. If not, the answer is no carafe.
  126. Let us examine two examples don't previously no left inside
  127. must be the same as right and side.
  128. We are K plus five equals seven.
  129. The result we obtain was K two.
  130. First, we must replace the unknown with its value in
  131. the equation Theun, simplify the information If the left inside
  132. is the same as the right inside that the results
  133. for the unknown is banning true or correct I would
  134. give you a few minutes to reading off the same
  135. exact the next example.
  136. Um we can see that the solutions are provided.
  137. We can also validate the answers by checking These are
  138. the remaining solution.
  139. Know that the variable can be located on the right
  140. and size again we can chest to ensure or answers
  141. are correct.
  142. You can visit the following websites for additional content such
  143. as videos, worksheets or nose.
  144. There are other useful website that you may utilize for
  145. any challenge is concerned PBA or for additional assistance.
  146. You can email following teacher