0.4(2r+3)=0.6+3.6

Solution for 0.4(2r+3)=0.6+3.6 equation:

Simplifying
0.4(2r + 3) = 0.6 + 3.6

Reorder the terms:
0.4(3 + 2r) = 0.6 + 3.6
(3 * 0.4 + 2r * 0.4) = 0.6 + 3.6
(1.2 + 0.8r) = 0.6 + 3.6

Combine like terms: 0.6 + 3.6 = 4.2
1.2 + 0.8r = 4.2

Solving
1.2 + 0.8r = 4.2

Solving for variable 'r'.

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

Add '-1.2' to each side of the equation.
1.2 + -1.2 + 0.8r = 4.2 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + 0.8r = 4.2 + -1.2
0.8r = 4.2 + -1.2

Combine like terms: 4.2 + -1.2 = 3
0.8r = 3

Divide each side by '0.8'.
r = 3.75

Simplifying
r = 3.75