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8.1(x-4)=-11.1+x
We move all terms to the left:
8.1(x-4)-(-11.1+x)=0
We add all the numbers together, and all the variables
8.1(x-4)-(x-11.1)=0
We multiply parentheses
8.1x-(x-11.1)-32.4=0
We get rid of parentheses
8.1x-x+11.1-32.4=0
We add all the numbers together, and all the variables
7.1x-21.3=0
We move all terms containing x to the left, all other terms to the right
7.1x=21.3
x=21.3/7.1
x=3+3.5527136788005E-15/7.1
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