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56=0.5(135+x)
We move all terms to the left:
56-(0.5(135+x))=0
We add all the numbers together, and all the variables
-(0.5(x+135))+56=0
We calculate terms in parentheses: -(0.5(x+135)), so:We get rid of parentheses
0.5(x+135)
We multiply parentheses
0.5x+67.5
Back to the equation:
-(0.5x+67.5)
-0.5x-67.5+56=0
We add all the numbers together, and all the variables
-0.5x-11.5=0
We move all terms containing x to the left, all other terms to the right
-0.5x=11.5
x=11.5/-0.5
x=-23
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