3r^2-50=58

Solution for 3r^2-50=58 equation:

Simplifying
3r2 + -50 = 58

Reorder the terms:
-50 + 3r2 = 58

Solving
-50 + 3r2 = 58

Solving for variable 'r'.

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

Add '50' to each side of the equation.
-50 + 50 + 3r2 = 58 + 50

Combine like terms: -50 + 50 = 0
0 + 3r2 = 58 + 50
3r2 = 58 + 50

Combine like terms: 58 + 50 = 108
3r2 = 108

Divide each side by '3'.
r2 = 36

Simplifying
r2 = 36

Take the square root of each side:
r = {-6, 6}