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x+.11x=12.58
We move all terms to the left:
x+.11x-(12.58)=0
We add all the numbers together, and all the variables
1.11x-12.58=0
We move all terms containing x to the left, all other terms to the right
1.11x=12.58
x=12.58/1.11
x=11+0.37/1.11
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