-3.5r+3r=1.3r+31.3

Solution for -3.5r+3r=1.3r+31.3 equation:

Simplifying
-3.5r + 3r = 1.3r + 31.3

Combine like terms: -3.5r + 3r = -0.5r
-0.5r = 1.3r + 31.3

Reorder the terms:
-0.5r = 31.3 + 1.3r

Solving
-0.5r = 31.3 + 1.3r

Solving for variable 'r'.

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

Add '-1.3r' to each side of the equation.
-0.5r + -1.3r = 31.3 + 1.3r + -1.3r

Combine like terms: -0.5r + -1.3r = -1.8r
-1.8r = 31.3 + 1.3r + -1.3r

Combine like terms: 1.3r + -1.3r = 0.0
-1.8r = 31.3 + 0.0
-1.8r = 31.3

Divide each side by '-1.8'.
r = -17.38888889

Simplifying
r = -17.38888889