-31=-8u+5(u-5)

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Solution for -31=-8u+5(u-5) equation: 



-31=-8u+5(u-5)

We move all terms to the left:

-31-(-8u+5(u-5))=0



We calculate terms in parentheses: -(-8u+5(u-5)), so:

-8u+5(u-5)

We multiply parentheses

-8u+5u-25

We add all the numbers together, and all the variables

-3u-25

Back to the equation:

-(-3u-25)



We get rid of parentheses

3u+25-31=0

We add all the numbers together, and all the variables

3u-6=0

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

3u=6

u=6/3

u=2

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