(9y)+4y=99

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Solution for (9y)+4y=99 equation: 



(9y)+4y=99

We move all terms to the left:

(9y)+4y-(99)=0

We add all the numbers together, and all the variables

13y-99=0

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

13y=99

y=99/13

y=7+8/13

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