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(3x+10)+50+(x-8)=180
We move all terms to the left:
(3x+10)+50+(x-8)-(180)=0
We add all the numbers together, and all the variables
(3x+10)+(x-8)-130=0
We get rid of parentheses
3x+x+10-8-130=0
We add all the numbers together, and all the variables
4x-128=0
We move all terms containing x to the left, all other terms to the right
4x=128
x=128/4
x=32
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