One Step and Two Step Equations!

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by Jessica Ram2 views·Updated Mar 29, 2020
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  1. Hello, students.
  2. I hope that you're super fine for these lesson off
  3. math. We're going to review a little about I one
  4. step equation, but also we're going to add extra information
  5. about knowing and learning how to do a two step
  6. equation. So let's start with the topic in order to
  7. review one step equations being here.
  8. You have an example.
  9. It says five K equals 2 to 30.
  10. Sometimes we're going to have fractions in between, but they
  11. work in the same way.
  12. You will see.
  13. Remember that First of all, they're called one step equations
  14. because you just have to do one step in order
  15. just off the operation.
  16. How you just have one number next to the letter,
  17. so you will need to pass it to do the
  18. opposite symbol in the other side, and you will find
  19. the result of the letter.
  20. However, in this case, we have a fraction.
  21. So how do they work?
  22. I have the five K which is multiplying on.
  23. I need to pass the five to the other side
  24. to the division.
  25. So I have 2/3 divided by five.
  26. In that case, the fire.
  27. It's a whole number.
  28. You already know how to pass the whole number into
  29. infraction. Remember that in this case, I just need to
  30. place a one.
  31. So why divide us?
  32. Normal two times 5 10 on three times 13 If
  33. I can simplify, simplify.
  34. But in this case, I cannot.
  35. So I leave it like that.
  36. The result, or the value of the K, will be
  37. 10/3. Now let's move on to two step equations.
  38. They're called to step equations because have you seen these
  39. example on the left?
  40. You have two numbers on before you have just the
  41. five in the example of Fife Gay.
  42. In this case, you have eight to n a four
  43. there, two numbers.
  44. So I need to do to steps.
  45. Let's see.
  46. To be minus four equals to 24.
  47. I start from the farthest number two, the closest one
  48. off the letter.
  49. I have to be minus four in this example.
  50. The farthest number from the B.
  51. It's the four.
  52. Why? Because you see that there's something in between the
  53. two. Which one was that?
  54. Something multiplication.
  55. So you have to be or two times speak.
  56. The two is win something regarding the P That's why
  57. it is the closest.
  58. So let's go back.
  59. I start from the farthest to the closest that for
  60. it's the farthest number from the letter.
  61. So I need to pass death four to the other
  62. side to do the opposite symbol, which is adding So
  63. it will be 24 plus four.
  64. Remember a very important step.
  65. It's that I respect the result.
  66. The result was 24 so I respected because the 24
  67. was first.
  68. And then I passed the number that I took from
  69. the other side to do the opposite symbol, which in
  70. this case, it's tradition.
  71. So I add 24 plus four.
  72. Okay, 24 plus four equals to 28.
  73. I wrote it in there.
  74. Now I'm going to take the closest number from the
  75. letter on.
  76. I'm going to do this thing.
  77. I pass it to the other side to do the
  78. opposite symbol.
  79. Before it was multiplying.
  80. Now it will be dividing to any a divided by
  81. two. I do the normal step, which is the operation
  82. 28 divided by two equals 2 14 So now I
  83. know which was the value of the piece in this
  84. case, 14.
  85. Remember, the difference between a one step equation and a
  86. two step equation are the steps in one step.
  87. I had to do once that because I have only
  88. one number next to the letter.
  89. In this case, the two step equations.
  90. They have two numbers.
  91. So I need to do to steps toe past those
  92. two numbers to the other side to do opposite operations.
  93. But we start from the farthest to the closest.
  94. Sometimes they're also going to have fractions in between.
  95. How? In here?
  96. You have an example.
  97. Axe over three minus five equals 2 19 How do
  98. I know that I have more steps?
  99. Because I have two numbers on the left, the three
  100. under five.
  101. But I also have a beautiful object over there, which
  102. is a fraction.
  103. So how do they work?
  104. Normally, you already know all of the steps and you
  105. already know how to work with fractions.
  106. So let's start step number one.
  107. I look, which is the farthest number from the letter.
  108. In this case, it will be the minus five.
  109. As you see in these examples.
  110. Now, I need to pass the minus five to the
  111. other side to do the opposite, which is a vision
  112. I Ada's normal 19 plus five, which is 24 now
  113. I'm going to take the closest number from the letter,
  114. which is the three, and I'm going to pass it
  115. to the other side to do the opposite.
  116. Before it was divided.
  117. Because, remember, the fractions are divisions.
  118. So before, before he was divided, Now I pass it
  119. to the other side to multiply 24 times three.
  120. I do it us normally 24 times three and it's
  121. 72. How do I know that I finished?
  122. Because I do not have anything else regarding the X,
  123. which was the letter.
  124. So now I know how to solve it to step
  125. equation regarding also fractions.
  126. In this case, the value of the X was 72.
  127. Now you know how to solve the equations with fractions
  128. on with more than one step, you're super clever.
  129. Go ahead