-2(-2u+6)-u=7(u-3)-9

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Solution for -2(-2u+6)-u=7(u-3)-9 equation: 



-2(-2u+6)-u=7(u-3)-9

We move all terms to the left:

-2(-2u+6)-u-(7(u-3)-9)=0

We add all the numbers together, and all the variables

-1u-2(-2u+6)-(7(u-3)-9)=0

We multiply parentheses

-1u+4u-(7(u-3)-9)-12=0



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

7(u-3)-9

We multiply parentheses

7u-21-9

We add all the numbers together, and all the variables

7u-30

Back to the equation:

-(7u-30)



We add all the numbers together, and all the variables

3u-(7u-30)-12=0

We get rid of parentheses

3u-7u+30-12=0

We add all the numbers together, and all the variables

-4u+18=0

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

-4u=-18

u=-18/-4

u=4+1/2

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