Question

Check my answer please?! Medal + Fan :)

Evaluate the following expression using the values given:
Find 4x - y - 2z if x = -2, y = 3, and z = -2

A) -15
B) 15
C) -7
D) 7

I got the answer -7 because 4(-2) - 3 - 2(-2) = -7

But I don't have my notes right now and I'm not sure if I need to change any of the signs from - to +.

Answer 1

Because I know if it's 4(-2) - 3 + 2(-2) then it equals -15 so I'm not sure

Answer 2

A would be your answear :)

Answer 3

Is it positive because of the double negatives?

The - 2(-2) part, I mean.

Answer 4

Correct. Two negatives make a positive

Answer 5

Thanks hun :)

Answer 6

I'm on the mobile app right now so I can't fan you but I will when I get on my laptop :)

Answer 7

No problem. Also, sorry late reply was doing something.