-8-5y=12-9y

Add 9y to both sides of the equation.

-8-5y+9y=12

Add -5y and 9y.

-8+4y=12

-8+4y=12

Add 8 to both sides of the equation.

4y=12+8

Add 12 and 8.

4y=20

4y=20

Divide each term in 4y=20 by 4.

4y4=204

Cancel the common factor of 4.

Cancel the common factor.

4y4=204

Divide y by 1.

y=204

y=204

Divide 20 by 4.

y=5

y=5

Solve for y -8-5y=12-9y