Question

2x + 3y = 3
3x – 2y = 11

What is the solution to the system?

(–3, 3)

(–1, –7)

(1, –4)

(3, –1)

Answer 1

To solve this, which method do you prefer? substitution or elimination?

Answer 2

This system requires graphing, but I don't have any graph paper. I did get this though
3x-2y=11 > 2y = -3 +11 and 2x + 3y =3 >3y = -2x + 3

Answer 3

Well, you did some parts right, but lets do it again:
3x-2y=11
-2y=-3x+11
y=3/2x-11/2
Did you notice where you made the mistake?
and the other one:
2x+3y=2
3y=-2x+2
y=-2/3x+2/3
Now before I graph it, did you notice your mistake?

Answer 4

I left out the x after -3?

Answer 5

Yes, and in my second equation, I also made a mistake, it should be
y=-2/3x+1

Answer 6

okay~

Answer 7

So I just graphed it, and it intersects at 3,-1. Which is your answer. Sometimes, you just can also put the options in the equations, and see which option makes it true.

Answer 8

Are you still there?

Answer 9

Me?

Answer 10

No, the asker

Answer 11

Yes?

Answer 12

I have an easier way to solve this.

Answer 13

MUCH easier.
:D

Answer 14

Substitution?

Answer 15

Yuppers. Just substitute them all in.

Answer 16

I'm sure you know how to do that

Answer 17

Okay,I'll try that next time. (And yes, I do, I just wanted to make sure I know how to do it this way too)

Answer 18

That's terrific! That's what a smart student does! Here is a badge for you.
:D

Answer 19

Oh, thank you~

Answer 20

find the y first