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no not really

Just started the unit

ok i still don't fully understand

So what would we get from there?

Seperate the three different values. So \[\bf 4x-4x=?\\~and~\\-y-6y=?\\~and~\\-11-10=?\]

x-y=1?

Can you solve those three things I have there? What is 4x-4x?

or does the x cancel out

No, it would be 0. The x's cancel out.

and y-y6 would be y or would it cancel out aswell

-y-6y is the same as -1-6.

-7y?

Correct. And -11-10 would be?

-1?

That would be if it was -11+10. -11-10=-21

So what we have left is \[\bf -7y=-21\] Now solve for y

Correct. So now substitute \[\bf y=3\] into the top section of the problem and solve for x

The "top section" would be \[\bf 4x - y = -11\] by the way

given what you showed me me so far it would be
B. 4x + 3y = 5
2y = -6
am i right?

Let's please finish solving the example

4x - 3y =-11

\[\bf 4x-3=-11\]

So then we would solve the bottom part 2x + 3y = 5

What? Solve for x in \[\bf 4x-3=-11\]

Idk how to solve for the x in this part

\[\bf 3x=9\] Can you solve for x here?

x = 3

How about this one? \[\bf 3x-3=9\]

How about this one \[\bf 4x-3=-11\] Solve it the same way as that last one.

Correct. So now we have solved the example \[\bf x=-2\\y=3\]

I suppose you could just plug those values into the options and see which ones work.

indeed and the only one that has that Is B

Are you sure? B doesn't check out with me.

wym?

\[\bf 2(3) \neq -6\]

Oh i looked at b but saw the numbers different

Then would It Be C

\[\bf 9(-2)=-6?\]

sorry im really tired so sorry if im not 100% in to it

I dont know really

Let's go over A \[\bf x=-2\\y=3\\~\\-4x - 9y = -19\] Plug em in and see if they work

No it wont work

i don't know how to say this, but it does work.

really

8-27=-19 yes

oh ok

all I had to do was do 8-27

\[\bf x=-2\\y=3\\~\\-10y=-30\] Does it work?

Yes

So then A is all good. Now let's check D.

\[\bf x=-2\\y=3\\~\\12x - 3y = -33\]

i believe that D wouldn't work

What reason supports that belief?

Its really an educated guess

What is the "educated" in that educated guess?

a guess

So it's just a guess then

yes

Here's a pro-tip for turning your guesses into certainty: \[\huge Do\\\huge the\\\huge work\]

\[\bf x=-2\\y=3\\~\\12x - 3y = -33\]

ok sorry im told I got to get off but I think its A am i right?

Well D is right too but yes, A is correct

Ok thanks alot

have a good night

U too, nite