Question

Evaluate the following expression using the values given.
Find 4x - 10y if x = -4, y = 2

Answer 1

Let me ask you this. What is just 4x if x = -4 ?

Answer 2

4x -4

Answer 3

4x means 4 times x. So if x = -4, what does 4x equal. That is, what is 4 times x?

Answer 4

what's the value of 4x if x = -4

Answer 5

ok i get it

Answer 6

so what's the answer?

Answer 7

...to: Find 4x - 10y if x = -4, y = 2

Answer 8

What is the value of 4x if x = -4?

Answer 9

4x = 4 times -4 = -16

Answer 10

Now if y = 2, 10y = 10 times 2 = 20

Answer 11

Hence 4x - 10y = ... what?

Answer 12

-36