Question

12. Which value of n makes 9 - 2n = 4(n - 3) a true statement?

Answer 1

The answer is N = 4

Explanation:

Answer 2

5/3 or 1.6666...

Explanation:

9 - 2n = 4(n - 3) (distribute parentheses first i.e PEDMAS)

9 - 2n = 4(n) - 4(3)

9 - 2n = 4n - 12 (subtract 9 from both sides)

- 2n = 4n - 1 - 9

- 2n = 4n - 10 (subtract 4n from both sides)

- 2n -4n = -10

-6n = -10 (divide both sides by -6)

n = -10 / -6 = 10/6 = 5/3