Question

solve the system using the addition method,

Answer 1

If you were to solve the system using the addition method, what would you multiply the first equation by in order to make the y's add out of this system?

Answer 2

-2x + 3y = 6
7x – 6y = 8

Answer 3

I earlier thought, it is not just you..


Ha ha ha...

But now I am thinking that it is just you.. ha ha ha..

Answer 4

lol..nice one

Answer 5

There you want to cancel out y or cancel out x ??

Answer 6

x

Answer 7

So for that you have to make the coefficients of x in both the equation to be same..

In first equation, what is the coefficient of x ??

Answer 8

-2?

Answer 9

Yep and for second equation it is 7..

So to make it same :

Multiply First equation by 7 and similarly Multiply Second equation by 2..

And tell me what did you get?

Answer 10

Basically in simpler meaning, multiply x coefficients of First equation with Second equation, and multiply x coefficient of Second equation with First equation...

Answer 11

i believe that the answer to my question is 7, since it asked me what I would mulitply the first equation by to make the ys add out in this system. right?

Answer 12

No..

It is first part..

See : To y adds out in this, there are two parts:

Firstly multiply first equation with 7..

Secondly multiply second equation with 2...

Answer 13

Oh sorry...

Answer 14

I did not read the question fully..

Yes to first equation, 7 is to be multiplied..

Answer 15

its ok. i learned a lil more :) i appreciate it

Answer 16

Keep it up..

Answer 17

thanks