Maths · Functions
If you multiply a number by 3 and then add the result is the same as if you firs
If you multiply a number by 3 and then add \( 40, \) the result is the same as if you first add 17 and then multiply by 2 What is the result if you subtract 9 from the number and then multiply by \( 4 ? \)
- A. -60
- B. -72
- C. -84
- D. -108
Step-by-step solution
Let the number be n. From the condition: 3n + 40 = 2(n + 17). Solving gives n = -6. Then (n - 9) * 4 = (-6 - 9) * 4 = (-15) * 4 = -60.
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