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x=-1/1.66666666667
We move all terms to the left:
x-(-1/1.66666666667)=0
We get rid of parentheses
x+1/1.66666666667=0
We multiply all the terms by the denominator
x*1.66666666667+1=0
Wy multiply elements
1.66666666667x+1=0
We move all terms containing x to the left, all other terms to the right
1.66666666667x=-1
x=-1/1.66666666667
x=-1/1.66666666667
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