Question

Can you explain the properties and how to use them?

Answer 1

You have the following expression:

(a + 2b)/ 5

In order to evaluate the previous expression for a = 1 and b = 2, you proceed as follow:

(a + 2b)/ 5 = ( 1 + 2(2) )/5

= ( 1 + 4 )/5

= (5)/5

= 1

Hence, the answer is 1.