2(r+3)=18

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Solution for 2(r+3)=18 equation: 


Simplifying
2(r + 3) = 18

Reorder the terms:
2(3 + r) = 18
(3 * 2 + r * 2) = 18
(6 + 2r) = 18

Solving
6 + 2r = 18

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 + 2r = 18 + -6

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

Combine like terms: 18 + -6 = 12
2r = 12

Divide each side by '2'.
r = 6

Simplifying
r = 6

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