3(7r+2)=

Solution for 3(7r+2)= equation:

Simplifying
3(7r + 2) = 0

Reorder the terms:
3(2 + 7r) = 0
(2 * 3 + 7r * 3) = 0
(6 + 21r) = 0

Solving
6 + 21r = 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 + 21r = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 21r = 0 + -6
21r = 0 + -6

Combine like terms: 0 + -6 = -6
21r = -6

Divide each side by '21'.
r = -0.2857142857

Simplifying
r = -0.2857142857