-49=-y^2

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Solution for -49=-y^2 equation:


Simplifying
-49 = -1y2

Solving
-49 = -1y2

Solving for variable 'y'.

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

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

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

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

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

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

Simplifying
y2 = 49

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

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