3(x+2)-9=-12

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Solution for 3(x+2)-9=-12 equation: 



3(x+2)-9=-12

We move all terms to the left:

3(x+2)-9-(-12)=0

We add all the numbers together, and all the variables

3(x+2)+3=0

We multiply parentheses

3x+6+3=0

We add all the numbers together, and all the variables

3x+9=0

We move all terms containing x to the left, all other terms to the right

3x=-9

x=-9/3

x=-3

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