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-2x+40=2(5x+2)
We move all terms to the left:
-2x+40-(2(5x+2))=0
We calculate terms in parentheses: -(2(5x+2)), so:We get rid of parentheses
2(5x+2)
We multiply parentheses
10x+4
Back to the equation:
-(10x+4)
-2x-10x-4+40=0
We add all the numbers together, and all the variables
-12x+36=0
We move all terms containing x to the left, all other terms to the right
-12x=-36
x=-36/-12
x=+3
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