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36x/42=30
We move all terms to the left:
36x/42-(30)=0
We multiply all the terms by the denominator
36x-30*42=0
We add all the numbers together, and all the variables
36x-1260=0
We move all terms containing x to the left, all other terms to the right
36x=1260
x=1260/36
x=35
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