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When we solve an equation, our goal is to isolate our variable by using our inverse operations. What does isolate mean? What operation is the inverse of…

Addition? Multiplication?

Addition X + 5 = -9 X + 5 - 5 = -9 -5 X = -14

6 + X = -4 6 - 6 + X = -4 - 6 X = 2

You try!

10 = X + 3

5 + X = 9

6 = 3 + X

Answers!!! X = 7

X = 4

X = 3

Equations with subtraction X - 5 = 8 X - 5 + 5 = 8+5 X = 13

-5 + X = 6 -5 + 5 + X = 6 + 5 X = 11

You try!

X - 7 = -1

X - 4 = 66

8 = X - 2

-8 = X – 2

Answers!!! X = 6

X = 70

X = 10

X = -6

Multiplication of Equations 3X = -93X/3 = -9/3 X = -3

-5X = -40 -5X/-5 = -40/-5 X = 8

You try! 4X = -16

-1X = 9

6 = 5X

12X = 3

Answers!!! X = -4

X = -9

X = 6/5

X = 1/4

Division of Equations 1/2X = 4 (2/1)1/2X = 4(2) X = 8

-3/4X = 6 (-4/3)(-3/4)X = 6(-4/3) X = -8

You try!

Answers!!! X = 27

X = -28

X = -3

X = 16

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