y^2+13-68=0

Solution for y^2+13-68=0 equation:

Simplifying
y2 + 13 + -68 = 0

Reorder the terms:
13 + -68 + y2 = 0

Combine like terms: 13 + -68 = -55
-55 + y2 = 0

Solving
-55 + y2 = 0

Solving for variable 'y'.

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

Add '55' to each side of the equation.
-55 + 55 + y2 = 0 + 55

Combine like terms: -55 + 55 = 0
0 + y2 = 0 + 55
y2 = 0 + 55

Combine like terms: 0 + 55 = 55
y2 = 55

Simplifying
y2 = 55

Take the square root of each side:
y = {-7.416198487, 7.416198487}