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13x+27=4x+288
We move all terms to the left:
13x+27-(4x+288)=0
We get rid of parentheses
13x-4x-288+27=0
We add all the numbers together, and all the variables
9x-261=0
We move all terms containing x to the left, all other terms to the right
9x=261
x=261/9
x=29
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