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-7+x/10=-8
We move all terms to the left:
-7+x/10-(-8)=0
We add all the numbers together, and all the variables
x/10+1=0
We multiply all the terms by the denominator
x+1*10=0
We add all the numbers together, and all the variables
x+10=0
We move all terms containing x to the left, all other terms to the right
x=-10
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