49=k^2

Solution for 49=k^2 equation:

Simplifying
49 = k2

Solving
49 = k2

Solving for variable 'k'.

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

Add '-1k2' to each side of the equation.
49 + -1k2 = k2 + -1k2

Combine like terms: k2 + -1k2 = 0
49 + -1k2 = 0

Add '-49' to each side of the equation.
49 + -49 + -1k2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + -1k2 = 0 + -49
-1k2 = 0 + -49

Combine like terms: 0 + -49 = -49
-1k2 = -49

Divide each side by '-1'.
k2 = 49

Simplifying
k2 = 49

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