2(3r+4)=20

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Solution for 2(3r+4)=20 equation: 


Simplifying
2(3r + 4) = 20

Reorder the terms:
2(4 + 3r) = 20
(4 * 2 + 3r * 2) = 20
(8 + 6r) = 20

Solving
8 + 6r = 20

Solving for variable 'r'.

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

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

Combine like terms: 8 + -8 = 0
0 + 6r = 20 + -8
6r = 20 + -8

Combine like terms: 20 + -8 = 12
6r = 12

Divide each side by '6'.
r = 2

Simplifying
r = 2

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