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x-3=8x+3=180
We move all terms to the left:
x-3-(8x+3)=0
We get rid of parentheses
x-8x-3-3=0
We add all the numbers together, and all the variables
-7x-6=0
We move all terms containing x to the left, all other terms to the right
-7x=6
x=6/-7
x=-6/7
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