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0.12(2x-5)-3x=81
We move all terms to the left:
0.12(2x-5)-3x-(81)=0
We add all the numbers together, and all the variables
-3x+0.12(2x-5)-81=0
We multiply parentheses
-3x+0.24x-0.6-81=0
We add all the numbers together, and all the variables
-2.76x-81.6=0
We move all terms containing x to the left, all other terms to the right
-2.76x=81.6
x=81.6/-2.76
x=-29+1/1.7692307692308
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