3r+6-9r=24

Solution for 3r+6-9r=24 equation:

Simplifying
3r + 6 + -9r = 24

Reorder the terms:
6 + 3r + -9r = 24

Combine like terms: 3r + -9r = -6r
6 + -6r = 24

Solving
6 + -6r = 24

Solving for variable 'r'.

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

Add '-6' to each side of the equation.
6 + -6 + -6r = 24 + -6

Combine like terms: 6 + -6 = 0
0 + -6r = 24 + -6
-6r = 24 + -6

Combine like terms: 24 + -6 = 18
-6r = 18

Divide each side by '-6'.
r = -3

Simplifying
r = -3