r^2+6-16=0

Solution for r^2+6-16=0 equation:

Simplifying
r2 + 6 + -16 = 0

Reorder the terms:
6 + -16 + r2 = 0

Combine like terms: 6 + -16 = -10
-10 + r2 = 0

Solving
-10 + r2 = 0

Solving for variable 'r'.

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

Add '10' to each side of the equation.
-10 + 10 + r2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + r2 = 0 + 10
r2 = 0 + 10

Combine like terms: 0 + 10 = 10
r2 = 10

Simplifying
r2 = 10

Take the square root of each side:
r = {-3.16227766, 3.16227766}