2r-21.6=3r+36

Solution for 2r-21.6=3r+36 equation:

Simplifying
2r + -21.6 = 3r + 36

Reorder the terms:
-21.6 + 2r = 3r + 36

Reorder the terms:
-21.6 + 2r = 36 + 3r

Solving
-21.6 + 2r = 36 + 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.
-21.6 + 2r + -3r = 36 + 3r + -3r

Combine like terms: 2r + -3r = -1r
-21.6 + -1r = 36 + 3r + -3r

Combine like terms: 3r + -3r = 0
-21.6 + -1r = 36 + 0
-21.6 + -1r = 36

Add '21.6' to each side of the equation.
-21.6 + 21.6 + -1r = 36 + 21.6

Combine like terms: -21.6 + 21.6 = 0.0
0.0 + -1r = 36 + 21.6
-1r = 36 + 21.6

Combine like terms: 36 + 21.6 = 57.6
-1r = 57.6

Divide each side by '-1'.
r = -57.6

Simplifying
r = -57.6