y^2-20=380

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Solution for y^2-20=380 equation: 


Simplifying
y2 + -20 = 380

Reorder the terms:
-20 + y2 = 380

Solving
-20 + y2 = 380

Solving for variable 'y'.

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

Add '20' to each side of the equation.
-20 + 20 + y2 = 380 + 20

Combine like terms: -20 + 20 = 0
0 + y2 = 380 + 20
y2 = 380 + 20

Combine like terms: 380 + 20 = 400
y2 = 400

Simplifying
y2 = 400

Take the square root of each side:
y = {-20, 20}

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