-y^2+28-26=0

Solution for -y^2+28-26=0 equation:

Simplifying
-1y2 + 28 + -26 = 0

Reorder the terms:
28 + -26 + -1y2 = 0

Combine like terms: 28 + -26 = 2
2 + -1y2 = 0

Solving
2 + -1y2 = 0

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + -1y2 = 0 + -2

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

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

Divide each side by '-1'.
y2 = 2

Simplifying
y2 = 2

Take the square root of each side:
y = {-1.414213562, 1.414213562}