-2r-6+5=-15

Solution for -2r-6+5=-15 equation:

Simplifying
-2r + -6 + 5 = -15

Reorder the terms:
-6 + 5 + -2r = -15

Combine like terms: -6 + 5 = -1
-1 + -2r = -15

Solving
-1 + -2r = -15

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + -2r = -15 + 1

Combine like terms: -1 + 1 = 0
0 + -2r = -15 + 1
-2r = -15 + 1

Combine like terms: -15 + 1 = -14
-2r = -14

Divide each side by '-2'.
r = 7

Simplifying
r = 7