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12x-30=(x+4)
We move all terms to the left:
12x-30-((x+4))=0
We calculate terms in parentheses: -((x+4)), so:We get rid of parentheses
(x+4)
We get rid of parentheses
x+4
Back to the equation:
-(x+4)
12x-x-4-30=0
We add all the numbers together, and all the variables
11x-34=0
We move all terms containing x to the left, all other terms to the right
11x=34
x=34/11
x=3+1/11
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