Using The Properties Of Equality To Solve The Equation -3x - 9 = -21, You Would _____

Using the properties of equality to solve the equation -3x - 9 = -21, you would _____

 

Answer: x= 4

Solution:

-3x - 9 = -21

Add +9 to both sides

-3x-9+9= -21+9

-3x= -12

Divide both sides by -3

-3x = -12

__ __

-3 -3

x= 4


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