Step One Take the number and cancel it out by adding it or subtracting it by itself. example one answer -4 + x = 24 +4 +4 -------------- 28 x = 28 8 - x = -7 example two answer -8 -8 ------- -15 x = 15 Last Friday Frank had $29. Over the

weekend he received some money for

cleaning the attic. He now has $41. How

much money did he get from cleaning the attic? Divide the problem in half through the = sign. Now take the number to the left of the = and do the opposite operation to itself to turn it in to 0. What you do on one side you do to the other so you need to add/subtract that same number to the right side, what you get is what x equals. Steps example 1 x + 1 = 2

- 1 -1

1 How to do a one step equation !!! example 2 X + 10 = 20

- 10 -10

10 Now you try some. x - 20 = 10 x + 600 = 1000 x - 12 = 4 x + 33 = 50 answers x = 30 X = 16 X = 400 X = 17 example 3 x + 5 = 45

- 5 -5

40 example 4 x + 100 = 128

- 100 -100

28 Real World Example Real World Problem Equation And Example X + 29 = 41

- 29 -29

12 Thanks For Watching !!!! : ) Solve for x.

6x = 42 Solve for x.

-8x = -72 What does it mean when the number

is stuck next to the variable?

What is the opposite of multiplication?

8 x 9 = 72. Fill in the blanks so that the

multiplication fact is written as a division fact.

9 = ___/____ What would you do

to solve this equation?

4x = 10 Solve for x.

-5x = 55 Solve for x.

5 = -10x Solve for x.

x/6 = 5 Solve for x.

x/10 = -6 You still have to get x by itself to solve the

equation.

What would you do to this equation to get

x by itself?

x/5 = 2

Why do you have do it to both sides of the

equation? Solve for x.

(3/4)x = 6 Solve for x.

(2/3)x = -8 To solve an equation like (2/3)x = 8, you

multiply by the reciprocal.

A reciprocal is a flipped over fraction.

Give the reciprocals of each fraction.

5/6 =

2/5 =

3/8 = Which fraction would you multiply

by to solve this equation?

(2/3)x = 10 Solve for x.

(5/8)x = -5

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# Solving One Step Equations

Algebra one - solving an equation with one variable on one side

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