3(3R+2)-(R-6)=13

Solution for 3(3R+2)-(R-6)=13 equation:

Simplifying
3(3R + 2) + -1(R + -6) = 13

Reorder the terms:
3(2 + 3R) + -1(R + -6) = 13
(2 * 3 + 3R * 3) + -1(R + -6) = 13
(6 + 9R) + -1(R + -6) = 13

Reorder the terms:
6 + 9R + -1(-6 + R) = 13
6 + 9R + (-6 * -1 + R * -1) = 13
6 + 9R + (6 + -1R) = 13

Reorder the terms:
6 + 6 + 9R + -1R = 13

Combine like terms: 6 + 6 = 12
12 + 9R + -1R = 13

Combine like terms: 9R + -1R = 8R
12 + 8R = 13

Solving
12 + 8R = 13

Solving for variable 'R'.

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

Add '-12' to each side of the equation.
12 + -12 + 8R = 13 + -12

Combine like terms: 12 + -12 = 0
0 + 8R = 13 + -12
8R = 13 + -12

Combine like terms: 13 + -12 = 1
8R = 1

Divide each side by '8'.
R = 0.125

Simplifying
R = 0.125