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146+(4x-2)=180
We move all terms to the left:
146+(4x-2)-(180)=0
We add all the numbers together, and all the variables
(4x-2)-34=0
We get rid of parentheses
4x-2-34=0
We add all the numbers together, and all the variables
4x-36=0
We move all terms containing x to the left, all other terms to the right
4x=36
x=36/4
x=9