Question

Help!! Medal!!

Determine which ordered pair in the form (x, y) is a solution to 3x – 4y = 21.

a. (-2, -3)
b. (0, 7)
c. (7, 0)
d. (-3, 2)

Answer 1

All you have to do is Plug in the numbers.

3(-2) - 4(-3) does that equal 21?

Answer 2

@pigglet

Answer 3

no? i got distracted, sorry

Answer 4

It's okay. So, you know the first one isn't right. Now do the second one.

Answer 5

3*0-4*7?

Answer 6

That is the correct step up now what is the answer to answer choice B?

Answer 7

-28?

Answer 8

@pigglet

Answer 9

is it c?

Answer 10

3(0) - 4(7)

3 * 0 = 0

4 * 7 = 28

28 + 0 = 28

and C is correct