Question

Find two numbers whose sum and difference are 40 and 10 respectively ​

Answer 1

Answer:

The two numbers are 25 and 15.

Step-by-step explanation:

ATQ

x + y = 40 (1)

x - y = 10. (2)

-------------. [by adding]

2x = 50

x = 25

______________________________________

putting the value in the equation 1,we get

25 + y = 40

y = 15

Hence ,the two numbers are 25 and 15.

hope it helps you

Answer 2

Answer:

Let the numbers be x and y

x+y=40

x-y=10

x+y-(x-y)=40-10

x-x+y+y=30

2y=30

$y = \frac{30}{2}$

y=15

Now that we have one of the values, we plug its value into either of the original equations to find the other:

x+y=40

x+15=40

x=40-15

x=25

y=15

x=25

Therefore the numbers are 15 and 25