r+s+r+s+t=

Solution for r+s+r+s+t= equation:

Simplifying
r + s + r + s + t = 0

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

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

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

Solving
2r + 2s + t = 0

Solving for variable 'r'.

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

Add '-2s' to each side of the equation.
2r + 2s + -2s + t = 0 + -2s

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

Add '-1t' to each side of the equation.
2r + t + -1t = -2s + -1t

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

Divide each side by '2'.
r = -1s + -0.5t

Simplifying
r = -1s + -0.5t