Question

n/2 - 3n/4 + 5n/6 = 21​

Answer 1

Answer:

n = -252/13 ≈ -19.38.

Step-by-step explanation:

n/2 - 3n/4 + 5n/6 = 21

6n/12 - 9n/12 - 10n/12 = 21

(6n - 9n - 10n) / 12 = 21

-13n = 252

n = -252/13 ≈ -19.38.

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Answer 2

Answer:

36

Step-by-step explanation:

By taking LCM,

6n/12 - 9n/12 + 10n/12 = 252/12

By cancellation,

6n - 9n + 10n = 252

7n = 252

n = 36