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2(x+2.5)=36
We move all terms to the left:
2(x+2.5)-(36)=0
We multiply parentheses
2x+5-36=0
We add all the numbers together, and all the variables
2x-31=0
We move all terms containing x to the left, all other terms to the right
2x=31
x=31/2
x=15+1/2
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