49-y^2=0

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Solution for 49-y^2=0 equation: 


Simplifying
49 + -1y2 = 0

Solving
49 + -1y2 = 0

Solving for variable 'y'.

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

Add '-49' to each side of the equation.
49 + -49 + -1y2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + -1y2 = 0 + -49
-1y2 = 0 + -49

Combine like terms: 0 + -49 = -49
-1y2 = -49

Divide each side by '-1'.
y2 = 49

Simplifying
y2 = 49

Take the square root of each side:
y = {-7, 7}

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