6y+9=6(y+5)-21

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Solution for 6y+9=6(y+5)-21 equation: 



6y+9=6(y+5)-21

We move all terms to the left:

6y+9-(6(y+5)-21)=0



We calculate terms in parentheses: -(6(y+5)-21), so:

6(y+5)-21

We multiply parentheses

6y+30-21

We add all the numbers together, and all the variables

6y+9

Back to the equation:

-(6y+9)



We get rid of parentheses

6y-6y-9+9=0

We add all the numbers together, and all the variables

=0

y=0/1

y=0

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