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x-12+5x=42+2x+4
We move all terms to the left:
x-12+5x-(42+2x+4)=0
We add all the numbers together, and all the variables
x+5x-(2x+46)-12=0
We add all the numbers together, and all the variables
6x-(2x+46)-12=0
We get rid of parentheses
6x-2x-46-12=0
We add all the numbers together, and all the variables
4x-58=0
We move all terms containing x to the left, all other terms to the right
4x=58
x=58/4
x=14+1/2
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