3r+r-3-3+7r=

Solution for 3r+r-3-3+7r= equation:

Simplifying
3r + r + -3 + -3 + 7r = 0

Reorder the terms:
-3 + -3 + 3r + r + 7r = 0

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

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

Combine like terms: 4r + 7r = 11r
-6 + 11r = 0

Solving
-6 + 11r = 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 + 11r = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 11r = 0 + 6
11r = 0 + 6

Combine like terms: 0 + 6 = 6
11r = 6

Divide each side by '11'.
r = 0.5454545455

Simplifying
r = 0.5454545455