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-2(6u-9)+u=7(u+4)
We move all terms to the left:
-2(6u-9)+u-(7(u+4))=0
We add all the numbers together, and all the variables
u-2(6u-9)-(7(u+4))=0
We multiply parentheses
u-12u-(7(u+4))+18=0
We calculate terms in parentheses: -(7(u+4)), so:We add all the numbers together, and all the variables
7(u+4)
We multiply parentheses
7u+28
Back to the equation:
-(7u+28)
-11u-(7u+28)+18=0
We get rid of parentheses
-11u-7u-28+18=0
We add all the numbers together, and all the variables
-18u-10=0
We move all terms containing u to the left, all other terms to the right
-18u=10
u=10/-18
u=-5/9
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