12y-4=9y=7

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Solution for 12y-4=9y=7 equation: 



12y-4=9y=7

We move all terms to the left:

12y-4-(9y)=0

We add all the numbers together, and all the variables

3y-4=0

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

3y=4

y=4/3

y=1+1/3

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