5u-40=-9(u-8)

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Solution for 5u-40=-9(u-8) equation: 



5u-40=-9(u-8)

We move all terms to the left:

5u-40-(-9(u-8))=0



We calculate terms in parentheses: -(-9(u-8)), so:

-9(u-8)

We multiply parentheses

-9u+72

Back to the equation:

-(-9u+72)



We get rid of parentheses

5u+9u-72-40=0

We add all the numbers together, and all the variables

14u-112=0

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

14u=112

u=112/14

u=8

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