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540=2x+2x+3x-30+2x+60+3x+50
We move all terms to the left:
540-(2x+2x+3x-30+2x+60+3x+50)=0
We add all the numbers together, and all the variables
-(12x+80)+540=0
We get rid of parentheses
-12x-80+540=0
We add all the numbers together, and all the variables
-12x+460=0
We move all terms containing x to the left, all other terms to the right
-12x=-460
x=-460/-12
x=38+1/3
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