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8=x/7+3
We move all terms to the left:
8-(x/7+3)=0
We get rid of parentheses
-x/7-3+8=0
We multiply all the terms by the denominator
-x-3*7+8*7=0
We add all the numbers together, and all the variables
-1x+35=0
We move all terms containing x to the left, all other terms to the right
-x=-35
x=-35/-1
x=+35
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