Which system of equations is equivalent to the following system? 2x + 4y = 14
4x + y = 20

A.) 2x + 4y = 14
-16x - 4y = -80

B.) 2x + 4y = 14
-4x + y = -20

C.) 4x + 8y = -28
4x + y = 20

D.) 0-2x - 4y = 14
4x + y = 20

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.

answer is 144

step-by-step explanation: