4+y^2=8

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Solution for 4+y^2=8 equation: 


Simplifying
4 + y2 = 8

Solving
4 + y2 = 8

Solving for variable 'y'.

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

Add '-4' to each side of the equation.
4 + -4 + y2 = 8 + -4

Combine like terms: 4 + -4 = 0
0 + y2 = 8 + -4
y2 = 8 + -4

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

Simplifying
y2 = 4

Take the square root of each side:
y = {-2, 2}

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