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18x-7=12x+19
We move all terms to the left:
18x-7-(12x+19)=0
We get rid of parentheses
18x-12x-19-7=0
We add all the numbers together, and all the variables
6x-26=0
We move all terms containing x to the left, all other terms to the right
6x=26
x=26/6
x=4+1/3
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