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5(x+4)=7(2+x)
We move all terms to the left:
5(x+4)-(7(2+x))=0
We add all the numbers together, and all the variables
5(x+4)-(7(x+2))=0
We multiply parentheses
5x-(7(x+2))+20=0
We calculate terms in parentheses: -(7(x+2)), so:We get rid of parentheses
7(x+2)
We multiply parentheses
7x+14
Back to the equation:
-(7x+14)
5x-7x-14+20=0
We add all the numbers together, and all the variables
-2x+6=0
We move all terms containing x to the left, all other terms to the right
-2x=-6
x=-6/-2
x=+3
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