2y=3-y^2

Solution for 2y=3-y^2 equation:

Simplifying
2y = 3 + -1y2

Solving
2y = 3 + -1y2

Solving for variable 'y'.

Reorder the terms:
-3 + 2y + y2 = 3 + -1y2 + -3 + y2

Reorder the terms:
-3 + 2y + y2 = 3 + -3 + -1y2 + y2

Combine like terms: 3 + -3 = 0
-3 + 2y + y2 = 0 + -1y2 + y2
-3 + 2y + y2 = -1y2 + y2

Combine like terms: -1y2 + y2 = 0
-3 + 2y + y2 = 0

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

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

Simplifying
1 + -1y = 0

Solving
1 + -1y = 0

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

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

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

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

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

Simplifying
y = 1
Solution
y = {-3, 1}