-4u=(u-8)-7u

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Solution for -4u=(u-8)-7u equation: 



-4u=(u-8)-7u

We move all terms to the left:

-4u-((u-8)-7u)=0



We calculate terms in parentheses: -((u-8)-7u), so:

(u-8)-7u

We add all the numbers together, and all the variables

-7u+(u-8)

We get rid of parentheses

-7u+u-8

We add all the numbers together, and all the variables

-6u-8

Back to the equation:

-(-6u-8)



We get rid of parentheses

-4u+6u+8=0

We add all the numbers together, and all the variables

2u+8=0

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

2u=-8

u=-8/2

u=-4

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