3(r+1.3)=7.2

Solution for 3(r+1.3)=7.2 equation:

Simplifying
3(r + 1.3) = 7.2

Reorder the terms:
3(1.3 + r) = 7.2
(1.3 * 3 + r * 3) = 7.2
(3.9 + 3r) = 7.2

Solving
3.9 + 3r = 7.2

Solving for variable 'r'.

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

Add '-3.9' to each side of the equation.
3.9 + -3.9 + 3r = 7.2 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + 3r = 7.2 + -3.9
3r = 7.2 + -3.9

Combine like terms: 7.2 + -3.9 = 3.3
3r = 3.3

Divide each side by '3'.
r = 1.1

Simplifying
r = 1.1