-3(u+5)=15

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Solution for -3(u+5)=15 equation: 



-3(u+5)=15

We move all terms to the left:

-3(u+5)-(15)=0

We multiply parentheses

-3u-15-15=0

We add all the numbers together, and all the variables

-3u-30=0

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

-3u=30

u=30/-3

u=-10

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