The Sum Of Two Numbers Is 64 And Their Difference Is 21

The problem given says that 2 unknown numbers are given, whose sum is equal to 64 and the difference is 21. Let's find the two numbers :

When we add the two numbers :
X + Y = 64

The difference of two numbers :
X - Y = 21

Solution :

If we add the two equations eachother , then we can find the first number.

X + Y = 64
X - Y = 21

2X = 85

Let's divide 85 to 2 for the first number "X" .

X/2 = 42.5

First number is 42.5

X + Y = 64
So ;
42.5 + Y = 64
Y = 64 - 42.5
Y = 21.5

Second number is 21.5

Question & Answer
The Sum Of Two Numbers Is 64 And Their Difference Is 21 : 42.5 And 21.5

Ask Your Question

Pages

View all the math equations done in WhatNumbers.com page by page.

Your math questions area, ask and get answer. All math calculations meet here WhatNumbers.com

About Us | Contact | Privacy

Copyright 2021 - © WhatNumbers.com