2y^2-140=120

Solution for 2y^2-140=120 equation:

Simplifying
2y2 + -140 = 120

Reorder the terms:
-140 + 2y2 = 120

Solving
-140 + 2y2 = 120

Solving for variable 'y'.

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

Add '140' to each side of the equation.
-140 + 140 + 2y2 = 120 + 140

Combine like terms: -140 + 140 = 0
0 + 2y2 = 120 + 140
2y2 = 120 + 140

Combine like terms: 120 + 140 = 260
2y2 = 260

Divide each side by '2'.
y2 = 130

Simplifying
y2 = 130

Take the square root of each side:
y = {-11.401754251, 11.401754251}