-1=-2r+6

Solution for -1=-2r+6 equation:

Simplifying
-1 = -2r + 6

Reorder the terms:
-1 = 6 + -2r

Solving
-1 = 6 + -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 = 6 + -2r + 2r

Combine like terms: -2r + 2r = 0
-1 + 2r = 6 + 0
-1 + 2r = 6

Add '1' to each side of the equation.
-1 + 1 + 2r = 6 + 1

Combine like terms: -1 + 1 = 0
0 + 2r = 6 + 1
2r = 6 + 1

Combine like terms: 6 + 1 = 7
2r = 7

Divide each side by '2'.
r = 3.5

Simplifying
r = 3.5