7y+2y=4

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Solution for 7y+2y=4 equation: 



7y+2y=4

We move all terms to the left:

7y+2y-(4)=0

We add all the numbers together, and all the variables

9y-4=0

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

9y=4

y=4/9

y=4/9

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