-6u+3(u+8)=21

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Solution for -6u+3(u+8)=21 equation: 



-6u+3(u+8)=21

We move all terms to the left:

-6u+3(u+8)-(21)=0

We multiply parentheses

-6u+3u+24-21=0

We add all the numbers together, and all the variables

-3u+3=0

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

-3u=-3

u=-3/-3

u=1

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