-1=2r+3r

Solution for -1=2r+3r equation:

Simplifying
-1 = 2r + 3r

Combine like terms: 2r + 3r = 5r
-1 = 5r

Solving
-1 = 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
-1 + -5r = 5r + -5r

Combine like terms: 5r + -5r = 0
-1 + -5r = 0

Add '1' to each side of the equation.
-1 + 1 + -5r = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -5r = 0 + 1
-5r = 0 + 1

Combine like terms: 0 + 1 = 1
-5r = 1

Divide each side by '-5'.
r = -0.2

Simplifying
r = -0.2