Question

If

x
=
4
and
y
=
5
, evaluate the following expression:
3
(
x
+
y
)

Answer 1

3(4+5)

Explanation:

just fill in the numbers for x and y

Answer 2

3(x + y)

x = 4 y = 5

3(4 + 5)

12 + 15

= 27

Explanation: