6(r+12)=42

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Solution for 6(r+12)=42 equation: 


Simplifying
6(r + 12) = 42

Reorder the terms:
6(12 + r) = 42
(12 * 6 + r * 6) = 42
(72 + 6r) = 42

Solving
72 + 6r = 42

Solving for variable 'r'.

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

Add '-72' to each side of the equation.
72 + -72 + 6r = 42 + -72

Combine like terms: 72 + -72 = 0
0 + 6r = 42 + -72
6r = 42 + -72

Combine like terms: 42 + -72 = -30
6r = -30

Divide each side by '6'.
r = -5

Simplifying
r = -5

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