2(u-3)-5u=21

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Solution for 2(u-3)-5u=21 equation: 



2(u-3)-5u=21

We move all terms to the left:

2(u-3)-5u-(21)=0

We add all the numbers together, and all the variables

-5u+2(u-3)-21=0

We multiply parentheses

-5u+2u-6-21=0

We add all the numbers together, and all the variables

-3u-27=0

We move all terms containing u to the left, all other terms to the right

-3u=27

u=27/-3

u=-9

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