Question

2. In order to eliminate the y from this system of equations,
3x + 12y = 21
6x + 4y = 22
you could
(1) Multiply both sides of the first equation by -2.
(2) Multiply both sides of the second equation by -3.
(3) Multiply both sides of the first equation by -3.
(4) Multiply both sides of the second equation by 1/2.



HELPPP PLEASE:( I’m stuck.

Answer 1

Answer:

It's (2).

Step-by-step explanation:

(2) Multiply both sides of the second equation by -3. That would create the following equation:

-18x - 12y = -66.

Adding this to the first equation will eliminate y.