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anyanavicka [17]
2 years ago
11

Joan is thinking of a number. She adds 5 and multiplies it by 4. She then subtracts n of her original number and divides by 20.

She wants the answer to always be 1. What is the value of n?​
Mathematics
1 answer:
iren2701 [21]2 years ago
4 0

Answer:

5

Step-by-step explanation:

  1. (4n+5)-n/20=1
  2. cross multiply:(4n+5)-n=20
  3. 4n+5=20+n
  4. 4n-n=20-5
  5. 3n=15
  6. Divide both sides by coefficient of n
  7. n=5
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