3(y+7)+7y=1

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Solution for 3(y+7)+7y=1 equation: 



3(y+7)+7y=1

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

7y+3y+21-1=0

We add all the numbers together, and all the variables

10y+20=0

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

10y=-20

y=-20/10

y=-2

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