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8+7(x-4)=3(x+4)
We move all terms to the left:
8+7(x-4)-(3(x+4))=0
We multiply parentheses
7x-(3(x+4))-28+8=0
We calculate terms in parentheses: -(3(x+4)), so:We add all the numbers together, and all the variables
3(x+4)
We multiply parentheses
3x+12
Back to the equation:
-(3x+12)
7x-(3x+12)-20=0
We get rid of parentheses
7x-3x-12-20=0
We add all the numbers together, and all the variables
4x-32=0
We move all terms containing x to the left, all other terms to the right
4x=32
x=32/4
x=8
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