16=a^2

Solution for 16=a^2 equation:

Simplifying
16 = a2

Solving
16 = a2

Solving for variable 'a'.

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

Add '-1a2' to each side of the equation.
16 + -1a2 = a2 + -1a2

Combine like terms: a2 + -1a2 = 0
16 + -1a2 = 0

Add '-16' to each side of the equation.
16 + -16 + -1a2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -1a2 = 0 + -16
-1a2 = 0 + -16

Combine like terms: 0 + -16 = -16
-1a2 = -16

Divide each side by '-1'.
a2 = 16

Simplifying
a2 = 16

Take the square root of each side:
a = {-4, 4}