y^2-87=-13

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Solution for y^2-87=-13 equation: 


Simplifying
y2 + -87 = -13

Reorder the terms:
-87 + y2 = -13

Solving
-87 + y2 = -13

Solving for variable 'y'.

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

Add '87' to each side of the equation.
-87 + 87 + y2 = -13 + 87

Combine like terms: -87 + 87 = 0
0 + y2 = -13 + 87
y2 = -13 + 87

Combine like terms: -13 + 87 = 74
y2 = 74

Simplifying
y2 = 74

Take the square root of each side:
y = {-8.602325267, 8.602325267}

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