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(4x-2)+(30)=68
We move all terms to the left:
(4x-2)+(30)-(68)=0
We add all the numbers together, and all the variables
(4x-2)-38=0
We get rid of parentheses
4x-2-38=0
We add all the numbers together, and all the variables
4x-40=0
We move all terms containing x to the left, all other terms to the right
4x=40
x=40/4
x=10
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