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4x-7=x+(-8)
We move all terms to the left:
4x-7-(x+(-8))=0
We calculate terms in parentheses: -(x+(-8)), so:We get rid of parentheses
x+(-8)
We add all the numbers together, and all the variables
x-8
Back to the equation:
-(x-8)
4x-x+8-7=0
We add all the numbers together, and all the variables
3x+1=0
We move all terms containing x to the left, all other terms to the right
3x=-1
x=-1/3
x=-1/3
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