3(x+4)=4(x-7)

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Solution for 3(x+4)=4(x-7) equation:



3(x+4)=4(x-7)
We move all terms to the left:
3(x+4)-(4(x-7))=0
We multiply parentheses
3x-(4(x-7))+12=0
We calculate terms in parentheses: -(4(x-7)), so:
4(x-7)
We multiply parentheses
4x-28
Back to the equation:
-(4x-28)
We get rid of parentheses
3x-4x+28+12=0
We add all the numbers together, and all the variables
-1x+40=0
We move all terms containing x to the left, all other terms to the right
-x=-40
x=-40/-1
x=+40

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