r+2s-(-3)-s=

Solution for r+2s-(-3)-s= equation:

Simplifying
r + 2s + -1(-3) + -1s = 0

Multiply -1 * -3
r + 2s + 3 + -1s = 0

Reorder the terms:
3 + r + 2s + -1s = 0

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

Solving
3 + r + 1s = 0

Solving for variable 'r'.

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

Add '-3' to each side of the equation.
3 + r + -3 + 1s = 0 + -3

Reorder the terms:
3 + -3 + r + 1s = 0 + -3

Combine like terms: 3 + -3 = 0
0 + r + 1s = 0 + -3
r + 1s = 0 + -3

Combine like terms: 0 + -3 = -3
r + 1s = -3

Add '-1s' to each side of the equation.
r + 1s + -1s = -3 + -1s

Combine like terms: 1s + -1s = 0
r + 0 = -3 + -1s
r = -3 + -1s

Simplifying
r = -3 + -1s