What is a possible first step to eliminate a variable in the following system?
7x – 9y = 2
3x – 6y = –4

Multiply the first equation by 2 and the second equation by –3.

Multiply the first equation by –3 and the second equation by –2.

Multiply the first equation by 7 and the second equation by 3.

Multiply the first equation by –2 and the second equation by 4.

Question

What is a possible first step to eliminate a variable in the following system?
7x – 9y = 2
3x – 6y = –4

 Multiply the first equation by 2 and the second equation by –3.

 Multiply the first equation by –3 and the second equation by –2.

 Multiply the first equation by 7 and the second equation by 3.

 Multiply the first equation by –2 and the second equation by 4.

anonymous · Answer

@roberman228  can you help again please ?

anonymous · Answer

@ryan.g.campbell.17 

21 ?

anonymous · Answer

the 4th one, i can explain if you want

anonymous · Answer

Thatd be good, thanks (: