-13=4(u-4)-7u

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Solution for -13=4(u-4)-7u equation: 



-13=4(u-4)-7u

We move all terms to the left:

-13-(4(u-4)-7u)=0



We calculate terms in parentheses: -(4(u-4)-7u), so:

4(u-4)-7u

We add all the numbers together, and all the variables

-7u+4(u-4)

We multiply parentheses

-7u+4u-16

We add all the numbers together, and all the variables

-3u-16

Back to the equation:

-(-3u-16)



We get rid of parentheses

3u+16-13=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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