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-1.5+12=2.5x-12
We move all terms to the left:
-1.5+12-(2.5x-12)=0
We add all the numbers together, and all the variables
-(2.5x-12)+10.5=0
We get rid of parentheses
-2.5x+12+10.5=0
We add all the numbers together, and all the variables
-2.5x+22.5=0
We move all terms containing x to the left, all other terms to the right
-2.5x=-22.5
x=-22.5/-2.5
x=+9
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