-8u+42=-5(u-9)

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Solution for -8u+42=-5(u-9) equation: 



-8u+42=-5(u-9)

We move all terms to the left:

-8u+42-(-5(u-9))=0



We calculate terms in parentheses: -(-5(u-9)), so:

-5(u-9)

We multiply parentheses

-5u+45

Back to the equation:

-(-5u+45)



We get rid of parentheses

-8u+5u-45+42=0

We add all the numbers together, and all the variables

-3u-3=0

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

-3u=3

u=3/-3

u=-1

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