1-7y-3=9(-y-2)

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



1-7y-3=9(-y-2)

We move all terms to the left:

1-7y-3-(9(-y-2))=0

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

-7y-(9(-1y-2))-2=0



We calculate terms in parentheses: -(9(-1y-2)), so:

9(-1y-2)

We multiply parentheses

-9y-18

Back to the equation:

-(-9y-18)



We get rid of parentheses

-7y+9y+18-2=0

We add all the numbers together, and all the variables

2y+16=0

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

2y=-16

y=-16/2

y=-8

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