3y+7=7-9y

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Solution for 3y+7=7-9y equation: 



3y+7=7-9y

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3y+9y-7+7=0

We add all the numbers together, and all the variables

12y=0

y=0/12

y=0

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