2(3r+7)-20=

Solution for 2(3r+7)-20= equation:

Simplifying
2(3r + 7) + -20 = 0

Reorder the terms:
2(7 + 3r) + -20 = 0
(7 * 2 + 3r * 2) + -20 = 0
(14 + 6r) + -20 = 0

Reorder the terms:
14 + -20 + 6r = 0

Combine like terms: 14 + -20 = -6
-6 + 6r = 0

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

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

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

Divide each side by '6'.
r = 1

Simplifying
r = 1