-3u+-15=-45

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Solution for -3u+-15=-45 equation: 



-3u+-15=-45

We move all terms to the left:

-3u+-15-(-45)=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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