3(r+1.4)-5r=5.9

Solution for 3(r+1.4)-5r=5.9 equation:

Simplifying
3(r + 1.4) + -5r = 5.9

Reorder the terms:
3(1.4 + r) + -5r = 5.9
(1.4 * 3 + r * 3) + -5r = 5.9
(4.2 + 3r) + -5r = 5.9

Combine like terms: 3r + -5r = -2r
4.2 + -2r = 5.9

Solving
4.2 + -2r = 5.9

Solving for variable 'r'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -2r = 5.9 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -2r = 5.9 + -4.2
-2r = 5.9 + -4.2

Combine like terms: 5.9 + -4.2 = 1.7
-2r = 1.7

Divide each side by '-2'.
r = -0.85

Simplifying
r = -0.85