Question

The sum of two numbers is 67, and their difference is 29. What are the two numbers?

Answer 1

Answer:

Let first number is x and second number is y.

Get value of y from this equation

x + y = 67

y = 67 - x

Get value of x from this equation

x - y = 27

x = 27 + y

now put value of y, from first equation to second equation

x = 27 + 67 -x

x + x = 94

2x = 94

x = 94 / 2

x = 47

Now to calculate y put value of x in firstequation

y = 67 - x

y = 67 - 47

y = 20

First number (x) = 47

Second number (y) = 20

x + y =67

47 + 20 = 67

x - y = 27

47 - 20 = 27