Nongpoyid
Answered

the sum of two numbers is 23 and their difference is 7.what are the two numbers?

Sagot :

x = first integer
x + 7 = second integer

x + x + 7 = 23
          2x = 23 - 7
    2x ÷ 2 = 16 ÷ 2
            x = 8 - first integer
      x + 7 = 8 + 7 = 15 - second integer

Check:

15 + 8 = 23
15 - 8 = 7