16=9+y^2

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Solution for 16=9+y^2 equation: 


Simplifying
16 = 9 + y2

Solving
16 = 9 + y2

Solving for variable 'y'.

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

Add '-1y2' to each side of the equation.
16 + -1y2 = 9 + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
16 + -1y2 = 9 + 0
16 + -1y2 = 9

Add '-16' to each side of the equation.
16 + -16 + -1y2 = 9 + -16

Combine like terms: 16 + -16 = 0
0 + -1y2 = 9 + -16
-1y2 = 9 + -16

Combine like terms: 9 + -16 = -7
-1y2 = -7

Divide each side by '-1'.
y2 = 7

Simplifying
y2 = 7

Take the square root of each side:
y = {-2.645751311, 2.645751311}

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