Question

If a = 7, what is the value of the expression 2(a + 8)? A. 2 B. 15 C. 17 D. 23 E. 30

Answer 1

Answer: E. 30

Explanation:

Cause a=7 and the equation is 2 (a+8) and it the same as 2 × (7+8) which if you use PEMDAS it's 2 × 15 =30

Answer 2

The answer is 30.

if 7=a and 2(a+8)

all you need to do is replace a with 7

so the formula would then be 2(7+8)

next you would solve in the parentheses.

2(15)

and 2(15) is the same as 2 x 15

so the answer would be 30