-4+y^2=28

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Solution for -4+y^2=28 equation: 


Simplifying
-4 + y2 = 28

Solving
-4 + y2 = 28

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 = 28 + 4

Combine like terms: -4 + 4 = 0
0 + y2 = 28 + 4
y2 = 28 + 4

Combine like terms: 28 + 4 = 32
y2 = 32

Simplifying
y2 = 32

Take the square root of each side:
y = {-5.656854249, 5.656854249}

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