2(r+4)=30

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Solution for 2(r+4)=30 equation: 


Simplifying
2(r + 4) = 30

Reorder the terms:
2(4 + r) = 30
(4 * 2 + r * 2) = 30
(8 + 2r) = 30

Solving
8 + 2r = 30

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 + 2r = 30 + -8

Combine like terms: 8 + -8 = 0
0 + 2r = 30 + -8
2r = 30 + -8

Combine like terms: 30 + -8 = 22
2r = 22

Divide each side by '2'.
r = 11

Simplifying
r = 11

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