y^2-98=-31

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Solution for y^2-98=-31 equation: 


Simplifying
y2 + -98 = -31

Reorder the terms:
-98 + y2 = -31

Solving
-98 + y2 = -31

Solving for variable 'y'.

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

Add '98' to each side of the equation.
-98 + 98 + y2 = -31 + 98

Combine like terms: -98 + 98 = 0
0 + y2 = -31 + 98
y2 = -31 + 98

Combine like terms: -31 + 98 = 67
y2 = 67

Simplifying
y2 = 67

Take the square root of each side:
y = {-8.185352772, 8.185352772}

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