3(4r+5)=63

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Solution for 3(4r+5)=63 equation: 


Simplifying
3(4r + 5) = 63

Reorder the terms:
3(5 + 4r) = 63
(5 * 3 + 4r * 3) = 63
(15 + 12r) = 63

Solving
15 + 12r = 63

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 + 12r = 63 + -15

Combine like terms: 15 + -15 = 0
0 + 12r = 63 + -15
12r = 63 + -15

Combine like terms: 63 + -15 = 48
12r = 48

Divide each side by '12'.
r = 4

Simplifying
r = 4

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