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142=10x+8x+2
We move all terms to the left:
142-(10x+8x+2)=0
We add all the numbers together, and all the variables
-(18x+2)+142=0
We get rid of parentheses
-18x-2+142=0
We add all the numbers together, and all the variables
-18x+140=0
We move all terms containing x to the left, all other terms to the right
-18x=-140
x=-140/-18
x=7+7/9
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