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 = 24
2r = 24

Divide each side by '2'.
r = 12

Simplifying
r = 12

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