-3(-2u+7)-9u=3(u-1)-9

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Solution for -3(-2u+7)-9u=3(u-1)-9 equation: 



-3(-2u+7)-9u=3(u-1)-9

We move all terms to the left:

-3(-2u+7)-9u-(3(u-1)-9)=0

We add all the numbers together, and all the variables

-9u-3(-2u+7)-(3(u-1)-9)=0

We multiply parentheses

-9u+6u-(3(u-1)-9)-21=0



We calculate terms in parentheses: -(3(u-1)-9), so:

3(u-1)-9

We multiply parentheses

3u-3-9

We add all the numbers together, and all the variables

3u-12

Back to the equation:

-(3u-12)



We add all the numbers together, and all the variables

-3u-(3u-12)-21=0

We get rid of parentheses

-3u-3u+12-21=0

We add all the numbers together, and all the variables

-6u-9=0

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

-6u=9

u=9/-6

u=-1+1/2

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