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3u+2=-4u+16+8u
We move all terms to the left:
3u+2-(-4u+16+8u)=0
We add all the numbers together, and all the variables
3u-(4u+16)+2=0
We get rid of parentheses
3u-4u-16+2=0
We add all the numbers together, and all the variables
-1u-14=0
We move all terms containing u to the left, all other terms to the right
-u=14
u=14/-1
u=-14
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