3r^2-4416-7=5

Solution for 3r^2-4416-7=5 equation:

Simplifying
3r2 + -4416 + -7 = 5

Reorder the terms:
-4416 + -7 + 3r2 = 5

Combine like terms: -4416 + -7 = -4423
-4423 + 3r2 = 5

Solving
-4423 + 3r2 = 5

Solving for variable 'r'.

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

Add '4423' to each side of the equation.
-4423 + 4423 + 3r2 = 5 + 4423

Combine like terms: -4423 + 4423 = 0
0 + 3r2 = 5 + 4423
3r2 = 5 + 4423

Combine like terms: 5 + 4423 = 4428
3r2 = 4428

Divide each side by '3'.
r2 = 1476

Simplifying
r2 = 1476

Take the square root of each side:
r = {-38.418745425, 38.418745425}