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x=-3(x-4)-4
We move all terms to the left:
x-(-3(x-4)-4)=0
We calculate terms in parentheses: -(-3(x-4)-4), so:We get rid of parentheses
-3(x-4)-4
We multiply parentheses
-3x+12-4
We add all the numbers together, and all the variables
-3x+8
Back to the equation:
-(-3x+8)
x+3x-8=0
We add all the numbers together, and all the variables
4x-8=0
We move all terms containing x to the left, all other terms to the right
4x=8
x=8/4
x=2
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