2y^2+y^2-3=

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

Simplifying
2y2 + y2 + -3 = 0

Reorder the terms:
-3 + 2y2 + y2 = 0

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

Solving
-3 + 3y2 = 0

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + 3y2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 3y2 = 0 + 3
3y2 = 0 + 3

Combine like terms: 0 + 3 = 3
3y2 = 3

Divide each side by '3'.
y2 = 1

Simplifying
y2 = 1

Take the square root of each side:
y = {-1, 1}