3(4-r)+5=9

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Solution for 3(4-r)+5=9 equation:


Simplifying
3(4 + -1r) + 5 = 9
(4 * 3 + -1r * 3) + 5 = 9
(12 + -3r) + 5 = 9

Reorder the terms:
12 + 5 + -3r = 9

Combine like terms: 12 + 5 = 17
17 + -3r = 9

Solving
17 + -3r = 9

Solving for variable 'r'.

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

Add '-17' to each side of the equation.
17 + -17 + -3r = 9 + -17

Combine like terms: 17 + -17 = 0
0 + -3r = 9 + -17
-3r = 9 + -17

Combine like terms: 9 + -17 = -8
-3r = -8

Divide each side by '-3'.
r = 2.666666667

Simplifying
r = 2.666666667

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