3(3r+2)-3r=-10

Solution for 3(3r+2)-3r=-10 equation:

Simplifying
3(3r + 2) + -3r = -10

Reorder the terms:
3(2 + 3r) + -3r = -10
(2 * 3 + 3r * 3) + -3r = -10
(6 + 9r) + -3r = -10

Combine like terms: 9r + -3r = 6r
6 + 6r = -10

Solving
6 + 6r = -10

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 + 6r = -10 + -6

Combine like terms: 6 + -6 = 0
0 + 6r = -10 + -6
6r = -10 + -6

Combine like terms: -10 + -6 = -16
6r = -16

Divide each side by '6'.
r = -2.666666667

Simplifying
r = -2.666666667