-3u+8=-4u

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Solution for -3u+8=-4u equation: 



-3u+8=-4u

We move all terms to the left:

-3u+8-(-4u)=0

We get rid of parentheses

-3u+4u+8=0

We add all the numbers together, and all the variables

u+8=0

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

u=-8

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