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20=0.15x+12
We move all terms to the left:
20-(0.15x+12)=0
We get rid of parentheses
-0.15x-12+20=0
We add all the numbers together, and all the variables
-0.15x+8=0
We move all terms containing x to the left, all other terms to the right
-0.15x=-8
x=-8/-0.15
x=53+0.050000000000001/0.15
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