Question

What is the value of 5a+2(a+b) when a=4 and b=2?

Answer 1

32

Explanation:

5a+2(a+b)=

5(4) + 2 (4+2)=

5(4) + 2(6)=

20+12=

32

this is the right one !

Answer 2

36

Explanation:

Well, first let's replace the a with 4, and the b with 2, since a =4, and b = 2.

5(4) + 2 (4 + 2)

Now, let's solve. First, do the equation inside the parenthesis.

5(4) + 2(8)

Now, we multiply.

20 + 16

Finally, we add the last two numbers and we get:

36