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0.39=0.75-0.12x
We move all terms to the left:
0.39-(0.75-0.12x)=0
We add all the numbers together, and all the variables
-(-0.12x+0.75)+0.39=0
We get rid of parentheses
0.12x-0.75+0.39=0
We add all the numbers together, and all the variables
0.12x-0.36=0
We move all terms containing x to the left, all other terms to the right
0.12x=0.36
x=0.36/0.12
x=3
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