(5y-7)+(7y+5)=90

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Solution for (5y-7)+(7y+5)=90 equation: 



(5y-7)+(7y+5)=90

We move all terms to the left:

(5y-7)+(7y+5)-(90)=0

We get rid of parentheses

5y+7y-7+5-90=0

We add all the numbers together, and all the variables

12y-92=0

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

12y=92

y=92/12

y=7+2/3

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