Question

If a = 7, what is the value of the expression 2(a + 8)?

Answer 1

You replace the a with 7.

2(a + 8)

• 2(7 + 8)

We solve the brackets (according to the BODMAS rule) and simplify.

• 2(15)
• 30.

Answer 2

30

Explanation:

2(a + 8)

Let a = 7

2(7 + 8)

Using PEMDAS, lets add first because this is inside the parentheses.

2(15)

Now multiply,

30