Question

The sum of two numbers is 49 and the difference between these two numbers is 9. What are these two numbers?​Shown working out please

Answer 1

Let numbers be x and y

ATQ

• x+y=49---(1)

• x-y=9---(2)

Adding both

`\\ \sf\longmapsto 2x=58`

`\\ \sf\longmapsto x=(58)/(2)`

`\\ \sf\longmapsto x=29`

Now putting value in eq(2)

`\\ \sf\longmapsto x-y=9`

`\\ \sf\longmapsto 29-9=y`

`\\ \sf\longmapsto y=20`