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28=3x+10+8x
We move all terms to the left:
28-(3x+10+8x)=0
We add all the numbers together, and all the variables
-(11x+10)+28=0
We get rid of parentheses
-11x-10+28=0
We add all the numbers together, and all the variables
-11x+18=0
We move all terms containing x to the left, all other terms to the right
-11x=-18
x=-18/-11
x=1+7/11
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