63-7y^2=0

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Solution for 63-7y^2=0 equation: 


Simplifying
63 + -7y2 = 0

Solving
63 + -7y2 = 0

Solving for variable 'y'.

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

Add '-63' to each side of the equation.
63 + -63 + -7y2 = 0 + -63

Combine like terms: 63 + -63 = 0
0 + -7y2 = 0 + -63
-7y2 = 0 + -63

Combine like terms: 0 + -63 = -63
-7y2 = -63

Divide each side by '-7'.
y2 = 9

Simplifying
y2 = 9

Take the square root of each side:
y = {-3, 3}

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