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

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

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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-3u+21u-(3(u-2)-9)-3=0


We calculate terms in parentheses: -(3(u-2)-9), so:

3(u-2)-9

We multiply parentheses

3u-6-9

We add all the numbers together, and all the variables

3u-15

Back to the equation:

-(3u-15)


We add all the numbers together, and all the variables

18u-(3u-15)-3=0

We get rid of parentheses

18u-3u+15-3=0

We add all the numbers together, and all the variables

15u+12=0

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

15u=-12

u=-12/15

u=-4/5