-3(r-9)+7r=

Solution for -3(r-9)+7r= equation:

Simplifying
-3(r + -9) + 7r = 0

Reorder the terms:
-3(-9 + r) + 7r = 0
(-9 * -3 + r * -3) + 7r = 0
(27 + -3r) + 7r = 0

Combine like terms: -3r + 7r = 4r
27 + 4r = 0

Solving
27 + 4r = 0

Solving for variable 'r'.

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

Add '-27' to each side of the equation.
27 + -27 + 4r = 0 + -27

Combine like terms: 27 + -27 = 0
0 + 4r = 0 + -27
4r = 0 + -27

Combine like terms: 0 + -27 = -27
4r = -27

Divide each side by '4'.
r = -6.75

Simplifying
r = -6.75