3(u-8)-7=-3(-7u+9)-8u

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Solution for 3(u-8)-7=-3(-7u+9)-8u equation: 



3(u-8)-7=-3(-7u+9)-8u

We move all terms to the left:

3(u-8)-7-(-3(-7u+9)-8u)=0

We multiply parentheses

3u-(-3(-7u+9)-8u)-24-7=0



We calculate terms in parentheses: -(-3(-7u+9)-8u), so:

-3(-7u+9)-8u

We add all the numbers together, and all the variables

-8u-3(-7u+9)

We multiply parentheses

-8u+21u-27

We add all the numbers together, and all the variables

13u-27

Back to the equation:

-(13u-27)



We add all the numbers together, and all the variables

3u-(13u-27)-31=0

We get rid of parentheses

3u-13u+27-31=0

We add all the numbers together, and all the variables

-10u-4=0

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

-10u=4

u=4/-10

u=-2/5

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