Question

What is the value of the expression below when x
= 4 and y = 4?
3x + 7y

Answer 1

40

3(4)+7(4)=40

Explanation:

x=4

y=4

3x + 7y

3(4)+7(4)

3x4=12

7x4=28

12+28=40

Answer 2

40

Explanation:

3x + 7y

Replace the letters with said numbers,

3(4) + 7(4)

Multiply,

12 + 28

And add!

40