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-12=2(u+4)+8
We move all terms to the left:
-12-(2(u+4)+8)=0
We calculate terms in parentheses: -(2(u+4)+8), so:We get rid of parentheses
2(u+4)+8
We multiply parentheses
2u+8+8
We add all the numbers together, and all the variables
2u+16
Back to the equation:
-(2u+16)
-2u-16-12=0
We add all the numbers together, and all the variables
-2u-28=0
We move all terms containing u to the left, all other terms to the right
-2u=28
u=28/-2
u=-14
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