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9(x+8)=-12
We move all terms to the left:
9(x+8)-(-12)=0
We add all the numbers together, and all the variables
9(x+8)+12=0
We multiply parentheses
9x+72+12=0
We add all the numbers together, and all the variables
9x+84=0
We move all terms containing x to the left, all other terms to the right
9x=-84
x=-84/9
x=-9+1/3
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