Question

The sum of two rational numbers is
421. If one of them is 57, find the
other.​

Answer 1

Answer:

Let the number be x

=> x + 57 = 421

=> x = 421 - 57 = 364

Therefore, 364 is the answer.

Answer 2

let the other number be y

y + 57 = 421

⇒ y = 421 - 57 = 364