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4+(x+3)/8=12
We move all terms to the left:
4+(x+3)/8-(12)=0
We add all the numbers together, and all the variables
(x+3)/8-8=0
We multiply all the terms by the denominator
(x+3)-8*8=0
We add all the numbers together, and all the variables
(x+3)-64=0
We get rid of parentheses
x+3-64=0
We add all the numbers together, and all the variables
x-61=0
We move all terms containing x to the left, all other terms to the right
x=61
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