40 POINTS TO WHO EVER answers first Which system of equations is equivalent to the following system?

4x + y = 4
2x + 7y = 28

A. 4x + y = 4
−2x − 7y = 28

B. 4x + y = 4
−8x − 28y = 112

C.−28x − 7y = −28
2x + 7y = 28

D. −8x − 2y = 8
2x + 7y = 28

A

Step-by-step explanation:

Given :

2x + 4y = 14   eq 1

4x + y = 20 eq 2

if you multiply eq 2 by -4 on both sides, you get

-4 (4x + y = 20) = -4 (20)

-16x -4y = -80 eq3

we can see that eq. 1 and eq 2 together forms the system of equations presented in option A, Hence A is equvalent to the orginal system of equations given in the question.

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !