-20R-6(-6R-1)=18R

Solution for -20R-6(-6R-1)=18R equation:

Simplifying
-20R + -6(-6R + -1) = 18R

Reorder the terms:
-20R + -6(-1 + -6R) = 18R
-20R + (-1 * -6 + -6R * -6) = 18R
-20R + (6 + 36R) = 18R

Reorder the terms:
6 + -20R + 36R = 18R

Combine like terms: -20R + 36R = 16R
6 + 16R = 18R

Solving
6 + 16R = 18R

Solving for variable 'R'.

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

Add '-18R' to each side of the equation.
6 + 16R + -18R = 18R + -18R

Combine like terms: 16R + -18R = -2R
6 + -2R = 18R + -18R

Combine like terms: 18R + -18R = 0
6 + -2R = 0

Add '-6' to each side of the equation.
6 + -6 + -2R = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -2R = 0 + -6
-2R = 0 + -6

Combine like terms: 0 + -6 = -6
-2R = -6

Divide each side by '-2'.
R = 3

Simplifying
R = 3