x^2-49=0is-7

Solution for x^2-49=0is-7 equation:

Simplifying
x2 + -49 = 0is + -7

Reorder the terms:
-49 + x2 = 0is + -7

Anything times zero is zero.
-49 + x2 = 0is + -7

Combine like terms: 0 + -7 = -7
-49 + x2 = -7

Solving
-49 + x2 = -7

Solving for variable 'x'.

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

Add '49' to each side of the equation.
-49 + 49 + x2 = -7 + 49

Combine like terms: -49 + 49 = 0
0 + x2 = -7 + 49
x2 = -7 + 49

Combine like terms: -7 + 49 = 42
x2 = 42

Simplifying
x2 = 42

Take the square root of each side:
x = {-6.480740698, 6.480740698}