-3u-5u=-56

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Solution for -3u-5u=-56 equation: 



-3u-5u=-56

We move all terms to the left:

-3u-5u-(-56)=0

We add all the numbers together, and all the variables

-8u+56=0

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

-8u=-56

u=-56/-8

u=+7

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