2(r+7)=20

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Solution for 2(r+7)=20 equation: 


Simplifying
2(r + 7) = 20

Reorder the terms:
2(7 + r) = 20
(7 * 2 + r * 2) = 20
(14 + 2r) = 20

Solving
14 + 2r = 20

Solving for variable 'r'.

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

Add '-14' to each side of the equation.
14 + -14 + 2r = 20 + -14

Combine like terms: 14 + -14 = 0
0 + 2r = 20 + -14
2r = 20 + -14

Combine like terms: 20 + -14 = 6
2r = 6

Divide each side by '2'.
r = 3

Simplifying
r = 3

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