(8y-9y)4+15=-5

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Solution for (8y-9y)4+15=-5 equation: 



(8y-9y)4+15=-5

We move all terms to the left:

(8y-9y)4+15-(-5)=0

We add all the numbers together, and all the variables

(-1y)4+15-(-5)=0

We add all the numbers together, and all the variables

(-1y)4+20=0

We multiply parentheses

-4y+20=0

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

-4y=-20

y=-20/-4

y=+5

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