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-13+3=2(x+2)
We move all terms to the left:
-13+3-(2(x+2))=0
We add all the numbers together, and all the variables
-(2(x+2))-10=0
We calculate terms in parentheses: -(2(x+2)), so:We get rid of parentheses
2(x+2)
We multiply parentheses
2x+4
Back to the equation:
-(2x+4)
-2x-4-10=0
We add all the numbers together, and all the variables
-2x-14=0
We move all terms containing x to the left, all other terms to the right
-2x=14
x=14/-2
x=-7
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