20=m^2

Solution for 20=m^2 equation:

Simplifying
20 = m2

Solving
20 = m2

Solving for variable 'm'.

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

Add '-1m2' to each side of the equation.
20 + -1m2 = m2 + -1m2

Combine like terms: m2 + -1m2 = 0
20 + -1m2 = 0

Add '-20' to each side of the equation.
20 + -20 + -1m2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -1m2 = 0 + -20
-1m2 = 0 + -20

Combine like terms: 0 + -20 = -20
-1m2 = -20

Divide each side by '-1'.
m2 = 20

Simplifying
m2 = 20

Take the square root of each side:
m = {-4.472135955, 4.472135955}