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42=-x/7=29
We move all terms to the left:
42-(-x/7)=0
We get rid of parentheses
x/7+42=0
We multiply all the terms by the denominator
x+42*7=0
We add all the numbers together, and all the variables
x+294=0
We move all terms containing x to the left, all other terms to the right
x=-294
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