Question

The sum of two numbers is 840. One of the numbers is 357. What is the other number?

Answer 1

We can create a formula first.

X will be the unknown number

840= 357+x
-357 -357

483 = x

Hope this helps

Answer 2

Explanation:

Given

The sum of two number =840

One number =357

First number+second number=840

357+a=840

a=840-357

a=483