-8u-40=-2(u-7)

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Solution for -8u-40=-2(u-7) equation: 



-8u-40=-2(u-7)

We move all terms to the left:

-8u-40-(-2(u-7))=0



We calculate terms in parentheses: -(-2(u-7)), so:

-2(u-7)

We multiply parentheses

-2u+14

Back to the equation:

-(-2u+14)



We get rid of parentheses

-8u+2u-14-40=0

We add all the numbers together, and all the variables

-6u-54=0

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

-6u=54

u=54/-6

u=-9

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