r+r+3+r=

Solution for r+r+3+r= equation:

Simplifying
r + r + 3 + r = 0

Reorder the terms:
3 + r + r + r = 0

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

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

Solving
3 + 3r = 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 + -3 + 3r = 0 + -3

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

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

Divide each side by '3'.
r = -1

Simplifying
r = -1