(7*7)+(X*X)=(12*12)

Solution for (7*7)+(X*X)=(12*12) equation:

Simplifying
(7 * 7) + (X * X) = (12 * 12)

Multiply 7 * 7
(49) + (X * X) = (12 * 12)
49 + (X * X) = (12 * 12)

Multiply X * X
49 + (X2) = (12 * 12)
49 + X2 = (12 * 12)

Multiply 12 * 12
49 + X2 = (144)
49 + X2 = 144

Solving
49 + X2 = 144

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 = 144 + -49

Combine like terms: 49 + -49 = 0
0 + X2 = 144 + -49
X2 = 144 + -49

Combine like terms: 144 + -49 = 95
X2 = 95

Simplifying
X2 = 95

Take the square root of each side:
X = {-9.746794345, 9.746794345}