8-5y^2+9y^2+3(8-5y)-8-5y(y)=30

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Solution for 8-5y^2+9y^2+3(8-5y)-8-5y(y)=30 equation: 



8-5y^2+9y^2+3(8-5y)-8-5y(y)=30

We move all terms to the left:

8-5y^2+9y^2+3(8-5y)-8-5y(y)-(30)=0

We add all the numbers together, and all the variables

-5y^2+9y^2+3(-5y+8)-5yy+8-8-30=0

We add all the numbers together, and all the variables

4y^2+3(-5y+8)-5yy-30=0

We multiply parentheses

4y^2-15y-5yy+24-30=0

We add all the numbers together, and all the variables

4y^2-15y-5yy-6=0

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

4y^2-15y-5yy=6

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