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-11=-3u+5(u-3)
We move all terms to the left:
-11-(-3u+5(u-3))=0
We calculate terms in parentheses: -(-3u+5(u-3)), so:We get rid of parentheses
-3u+5(u-3)
We multiply parentheses
-3u+5u-15
We add all the numbers together, and all the variables
2u-15
Back to the equation:
-(2u-15)
-2u+15-11=0
We add all the numbers together, and all the variables
-2u+4=0
We move all terms containing u to the left, all other terms to the right
-2u=-4
u=-4/-2
u=+2
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