3(r+5)=30

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Solution for 3(r+5)=30 equation: 


Simplifying
3(r + 5) = 30

Reorder the terms:
3(5 + r) = 30
(5 * 3 + r * 3) = 30
(15 + 3r) = 30

Solving
15 + 3r = 30

Solving for variable 'r'.

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

Add '-15' to each side of the equation.
15 + -15 + 3r = 30 + -15

Combine like terms: 15 + -15 = 0
0 + 3r = 30 + -15
3r = 30 + -15

Combine like terms: 30 + -15 = 15
3r = 15

Divide each side by '3'.
r = 5

Simplifying
r = 5

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