-49=-x^2

Solution for -49=-x^2 equation:

Simplifying
-49 = -1x2

Solving
-49 = -1x2

Solving for variable 'x'.

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

Add 'x2' to each side of the equation.
-49 + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-49 + x2 = 0

Add '49' to each side of the equation.
-49 + 49 + x2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + x2 = 0 + 49
x2 = 0 + 49

Combine like terms: 0 + 49 = 49
x2 = 49

Simplifying
x2 = 49

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