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-3(x+6)=8x+15.5
We move all terms to the left:
-3(x+6)-(8x+15.5)=0
We multiply parentheses
-3x-(8x+15.5)-18=0
We get rid of parentheses
-3x-8x-15.5-18=0
We add all the numbers together, and all the variables
-11x-33.5=0
We move all terms containing x to the left, all other terms to the right
-11x=33.5
x=33.5/-11
x=-3+0.5/11
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