3r+4r+6r-6=

Solution for 3r+4r+6r-6= equation:

Simplifying
3r + 4r + 6r + -6 = 0

Reorder the terms:
-6 + 3r + 4r + 6r = 0

Combine like terms: 3r + 4r = 7r
-6 + 7r + 6r = 0

Combine like terms: 7r + 6r = 13r
-6 + 13r = 0

Solving
-6 + 13r = 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 + 13r = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 13r = 0 + 6
13r = 0 + 6

Combine like terms: 0 + 6 = 6
13r = 6

Divide each side by '13'.
r = 0.4615384615

Simplifying
r = 0.4615384615