-7u=2(u+2)=-31

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Solution for -7u=2(u+2)=-31 equation: 



-7u=2(u+2)=-31

We move all terms to the left:

-7u-(2(u+2))=0



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

2(u+2)

We multiply parentheses

2u+4

Back to the equation:

-(2u+4)



We get rid of parentheses

-7u-2u-4=0

We add all the numbers together, and all the variables

-9u-4=0

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

-9u=4

u=4/-9

u=-4/9

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