9y^2+2-7=0

Solution for 9y^2+2-7=0 equation:

Simplifying
9y2 + 2 + -7 = 0

Reorder the terms:
2 + -7 + 9y2 = 0

Combine like terms: 2 + -7 = -5
-5 + 9y2 = 0

Solving
-5 + 9y2 = 0

Solving for variable 'y'.

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

Add '5' to each side of the equation.
-5 + 5 + 9y2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 9y2 = 0 + 5
9y2 = 0 + 5

Combine like terms: 0 + 5 = 5
9y2 = 5

Divide each side by '9'.
y2 = 0.5555555556

Simplifying
y2 = 0.5555555556

Take the square root of each side:
y = {-0.745355993, 0.745355993}