9y^2+20y-141=0

Solution for 9y^2+20y-141=0 equation:

Simplifying
9y2 + 20y + -141 = 0

Reorder the terms:
-141 + 20y + 9y2 = 0

Solving
-141 + 20y + 9y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-47 + -9y)(3 + -1y) = 0

Subproblem 1
Set the factor '(-47 + -9y)' equal to zero and attempt to solve:

Simplifying
-47 + -9y = 0

Solving
-47 + -9y = 0

Move all terms containing y to the left, all other terms to the right.

Add '47' to each side of the equation.
-47 + 47 + -9y = 0 + 47

Combine like terms: -47 + 47 = 0
0 + -9y = 0 + 47
-9y = 0 + 47

Combine like terms: 0 + 47 = 47
-9y = 47

Divide each side by '-9'.
y = -5.222222222

Simplifying
y = -5.222222222
Subproblem 2
Set the factor '(3 + -1y)' equal to zero and attempt to solve:

Simplifying
3 + -1y = 0

Solving
3 + -1y = 0

Move all terms containing y to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -3 + -1y = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1y = 0 + -3
-1y = 0 + -3

Combine like terms: 0 + -3 = -3
-1y = -3

Divide each side by '-1'.
y = 3

Simplifying
y = 3
Solution
y = {-5.222222222, 3}