Answered

the sum when a number is used as an addend five times is equal to the difference of 40 and 30.

Sagot :

Let an addend be x, so five times an addend is 5x

Equation:
   5x = 40 - 30

   5x = 10
    5       5
   
   x  = 2

The addend is 2.

To check:

2 + 2 + 2 + 2 + 2 = 40 - 30
                        10  = 10