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-1+x/9=-3
We move all terms to the left:
-1+x/9-(-3)=0
We add all the numbers together, and all the variables
x/9+2=0
We multiply all the terms by the denominator
x+2*9=0
We add all the numbers together, and all the variables
x+18=0
We move all terms containing x to the left, all other terms to the right
x=-18
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