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-4(-3x-4)-x=7+2x
We move all terms to the left:
-4(-3x-4)-x-(7+2x)=0
We add all the numbers together, and all the variables
-4(-3x-4)-x-(2x+7)=0
We add all the numbers together, and all the variables
-1x-4(-3x-4)-(2x+7)=0
We multiply parentheses
-1x+12x-(2x+7)+16=0
We get rid of parentheses
-1x+12x-2x-7+16=0
We add all the numbers together, and all the variables
9x+9=0
We move all terms containing x to the left, all other terms to the right
9x=-9
x=-9/9
x=-1
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