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Mathematics 9 Online
OpenStudy (danielle13asks):

How many solutions does the system of equations have? A. The system has exactly one solution. B. The system has infinitely many solutions. C. The system has no solution.

OpenStudy (danielle13asks):

OpenStudy (danielle13asks):

@Rebecca

OpenStudy (rebecca):

Okay so lets solve for y. y=-x+2 See what i did?

OpenStudy (danielle13asks):

Yes, I think so. But if not I can refer to my notes on that part. It's solving the questions that I was asked that I am having trouble with. But please continue! : )

OpenStudy (danielle13asks):

@Rebecca are you still there?

OpenStudy (rebecca):

Okay now we plug it in for y in the other equation.

OpenStudy (danielle13asks):

Ok!

OpenStudy (rebecca):

4x+4(-x+2)=8 Solve for x.

OpenStudy (danielle13asks):

i'm sorry I don't understand and I'm very confused. Because I don't think I have done math like that before. Yikes! Thats not good on my behalf.

OpenStudy (rebecca):

It's fine. Thanks for being honest.

OpenStudy (danielle13asks):

Your welcome! Can you help me understand it? Please?

OpenStudy (rebecca):

Let's break it down. What's 4(-x+2)=(4*-x)+(4*2)

OpenStudy (danielle13asks):

I don't know. I don't even now what -x is? I'm sorry that I am so confused.

OpenStudy (rebecca):

It's okay. Example -x*3=-3x -x*-5=5x etc What's -x*4=?

OpenStudy (danielle13asks):

I have no idea, but thanks for the help anyways. I'm saying that because I know that there is nothing further you can do. Because then that is against codes.

OpenStudy (rebecca):

Look at what i just said If -x*3=-3x then what is -x*4=?

OpenStudy (danielle13asks):

-4x?

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