12-y^2=4

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Solution for 12-y^2=4 equation: 


Simplifying
12 + -1y2 = 4

Solving
12 + -1y2 = 4

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + -1y2 = 4 + -12

Combine like terms: 12 + -12 = 0
0 + -1y2 = 4 + -12
-1y2 = 4 + -12

Combine like terms: 4 + -12 = -8
-1y2 = -8

Divide each side by '-1'.
y2 = 8

Simplifying
y2 = 8

Take the square root of each side:
y = {-2.828427125, 2.828427125}

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