3(6+2r)=8r-20

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Solution for 3(6+2r)=8r-20 equation:


Simplifying
3(6 + 2r) = 8r + -20
(6 * 3 + 2r * 3) = 8r + -20
(18 + 6r) = 8r + -20

Reorder the terms:
18 + 6r = -20 + 8r

Solving
18 + 6r = -20 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
18 + 6r + -8r = -20 + 8r + -8r

Combine like terms: 6r + -8r = -2r
18 + -2r = -20 + 8r + -8r

Combine like terms: 8r + -8r = 0
18 + -2r = -20 + 0
18 + -2r = -20

Add '-18' to each side of the equation.
18 + -18 + -2r = -20 + -18

Combine like terms: 18 + -18 = 0
0 + -2r = -20 + -18
-2r = -20 + -18

Combine like terms: -20 + -18 = -38
-2r = -38

Divide each side by '-2'.
r = 19

Simplifying
r = 19

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