-1=7(u-7)+5u

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Solution for -1=7(u-7)+5u equation: 



-1=7(u-7)+5u

We move all terms to the left:

-1-(7(u-7)+5u)=0



We calculate terms in parentheses: -(7(u-7)+5u), so:

7(u-7)+5u

We add all the numbers together, and all the variables

5u+7(u-7)

We multiply parentheses

5u+7u-49

We add all the numbers together, and all the variables

12u-49

Back to the equation:

-(12u-49)



We get rid of parentheses

-12u+49-1=0

We add all the numbers together, and all the variables

-12u+48=0

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

-12u=-48

u=-48/-12

u=+4

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