Question

Sometimes you have to multiply the first and second equations to eliminate a variable. What would you do to eliminate the y from this system?
3x + 4y = - 25
3x - 3y = 6

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


B.Multiply the first equation by 4 and the second equation by 3.


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


D.Multiply the first equation by 3 and the second equation by 4.

Answer 1

D because

Answer 2

i'll explain in a min.

Answer 3

I got c or d

Answer 4

let me explain

Answer 5

Alright

Answer 6

@geerky42 I got this

Answer 7

Because D would get first equation 12y and second equation -12y. hence you can add equation and eliminate y.

Answer 8

no offense, but try to be faster. @lacrosseplayer22

Answer 9

Speed doesn't matter, I want lacrosse to help me. i'm a slow learner and lacrosse explains it perfect for me.

Answer 10

@geerky42 you should find out whats happening before making assumptions. I have to reply to everyone mail at the same time. u should understand. I responded to 8 mails from people so.....

Answer 11

you can ignore mails, you know....

Answer 12

don't try and help hundred of people simultaneously. this will slow you down

Answer 13

but I choose to respond because it important. why do u worry about my business. go answer someone elses question

Answer 14

ok well it's not really good to make users wait. help each at once.