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7(x+2)=4(x-1)
We move all terms to the left:
7(x+2)-(4(x-1))=0
We multiply parentheses
7x-(4(x-1))+14=0
We calculate terms in parentheses: -(4(x-1)), so:We get rid of parentheses
4(x-1)
We multiply parentheses
4x-4
Back to the equation:
-(4x-4)
7x-4x+4+14=0
We add all the numbers together, and all the variables
3x+18=0
We move all terms containing x to the left, all other terms to the right
3x=-18
x=-18/3
x=-6
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