Question

1091 is subtracted from a secret number. After that, 4273 is added back. The final result is 4282. What is the secret number at first?

Answer 1

Answer:

1100

Step-by-step explanation:

Let the secret number = X

According to question

$x - 1091 + 4273 = 4282 \\ x + 3182 = 4282 \\ x = 4282 - 3182 \\ x = 1100$