-1=-4r+2r

Solution for -1=-4r+2r equation:

Simplifying
-1 = -4r + 2r

Combine like terms: -4r + 2r = -2r
-1 = -2r

Solving
-1 = -2r

Solving for variable 'r'.

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

Add '2r' to each side of the equation.
-1 + 2r = -2r + 2r

Combine like terms: -2r + 2r = 0
-1 + 2r = 0

Add '1' to each side of the equation.
-1 + 1 + 2r = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2r = 0 + 1
2r = 0 + 1

Combine like terms: 0 + 1 = 1
2r = 1

Divide each side by '2'.
r = 0.5

Simplifying
r = 0.5