-9-9(6y-15)=(12y-21)-24y

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Solution for -9-9(6y-15)=(12y-21)-24y equation: 



-9-9(6y-15)=(12y-21)-24y

We move all terms to the left:

-9-9(6y-15)-((12y-21)-24y)=0

We multiply parentheses

-54y-((12y-21)-24y)+135-9=0



We calculate terms in parentheses: -((12y-21)-24y), so:

(12y-21)-24y

We add all the numbers together, and all the variables

-24y+(12y-21)

We get rid of parentheses

-24y+12y-21

We add all the numbers together, and all the variables

-12y-21

Back to the equation:

-(-12y-21)



We add all the numbers together, and all the variables

-54y-(-12y-21)+126=0

We get rid of parentheses

-54y+12y+21+126=0

We add all the numbers together, and all the variables

-42y+147=0

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

-42y=-147

y=-147/-42

y=3+1/2

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