(R+s)+(s+r)+(r+s)=

Solution for (R+s)+(s+r)+(r+s)= equation:

Simplifying
(R + s) + (s + r) + (r + s) = 0

Remove parenthesis around (R + s)
R + s + (s + r) + (r + s) = 0

Reorder the terms:
R + s + (r + s) + (r + s) = 0

Remove parenthesis around (r + s)
R + s + r + s + (r + s) = 0

Remove parenthesis around (r + s)
R + s + r + s + r + s = 0

Reorder the terms:
R + r + r + s + s + s = 0

Combine like terms: r + r = 2r
R + 2r + s + s + s = 0

Combine like terms: s + s = 2s
R + 2r + 2s + s = 0

Combine like terms: 2s + s = 3s
R + 2r + 3s = 0

Solving
R + 2r + 3s = 0

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.
R + 2r + -2r + 3s = 0 + -2r

Combine like terms: 2r + -2r = 0
R + 0 + 3s = 0 + -2r
R + 3s = 0 + -2r
Remove the zero:
R + 3s = -2r

Add '-3s' to each side of the equation.
R + 3s + -3s = -2r + -3s

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

Simplifying
R = -2r + -3s