3(4+r)=27

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Solution for 3(4+r)=27 equation: 


Simplifying
3(4 + r) = 27
(4 * 3 + r * 3) = 27
(12 + 3r) = 27

Solving
12 + 3r = 27

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + 3r = 27 + -12

Combine like terms: 12 + -12 = 0
0 + 3r = 27 + -12
3r = 27 + -12

Combine like terms: 27 + -12 = 15
3r = 15

Divide each side by '3'.
r = 5

Simplifying
r = 5

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