r+r+6r+6=

Solution for r+r+6r+6= equation:

Simplifying
r + r + 6r + 6 = 0

Reorder the terms:
6 + r + r + 6r = 0

Combine like terms: r + r = 2r
6 + 2r + 6r = 0

Combine like terms: 2r + 6r = 8r
6 + 8r = 0

Solving
6 + 8r = 0

Solving for variable 'r'.

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

Add '-6' to each side of the equation.
6 + -6 + 8r = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 8r = 0 + -6
8r = 0 + -6

Combine like terms: 0 + -6 = -6
8r = -6

Divide each side by '8'.
r = -0.75

Simplifying
r = -0.75