15r+24r-72=3r

Solution for 15r+24r-72=3r equation:

Simplifying
15r + 24r + -72 = 3r

Reorder the terms:
-72 + 15r + 24r = 3r

Combine like terms: 15r + 24r = 39r
-72 + 39r = 3r

Solving
-72 + 39r = 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
-72 + 39r + -3r = 3r + -3r

Combine like terms: 39r + -3r = 36r
-72 + 36r = 3r + -3r

Combine like terms: 3r + -3r = 0
-72 + 36r = 0

Add '72' to each side of the equation.
-72 + 72 + 36r = 0 + 72

Combine like terms: -72 + 72 = 0
0 + 36r = 0 + 72
36r = 0 + 72

Combine like terms: 0 + 72 = 72
36r = 72

Divide each side by '36'.
r = 2

Simplifying
r = 2