Question

the sum of two number is 84 . if one of them exceed the other by 12,the numbers are

Answer 1

The number is 7....hope it helps..

Answer 2

In this problem, we are asked to find two numbers. Therefore, we must let x be one of them.  Let x, then, be the first number.

We are told that the other number is 12 more, x + 12.

The problem states that their sum is 84:

word problem = 84

The line over x + 12 is a grouping symbol called a vinculum.  It saves us writing parentheses.

We have:

2x  =  84 − 12

 

  =  72.

 

x  =  72

2

 

  =  36.

This is the first number.  Therefore the other number is

x + 12 = 36 + 12 = 48.

The sum of 36 + 48 is 84.