Question

Find the value of the x and y determinants in the following system:

-3x+2y=-6
4x-3y=4

Answer 1

@hero

Answer 2

Equation 1 * 3 = -9x + 6y = -18
Equation 2 * 2 = 8x - 6y = 8
then add them together to get
-x + 0y = -10
divde by -1
x = 10

Answer 3

I'm so confused.... What am I supposed to do? How did you arrive at that?

Answer 4

Wait.... Is this the elimination method?

Answer 5

Yes.

Answer 6

okay, I think I see what you did...

Answer 7

what about the determinant part?

Answer 8

isn't that bª-4ac?

Answer 9

I think it just wants the solution of the equation.

Answer 10

okay

Answer 11

Because we know x = 10 we can plug it into the first equation of -3x+2y=-6
-3 * 10 +2y = -6
-30 + 2y = -6
2y = 24

y = 12

Answer 12

okay, that makes sense!

Answer 13

Do you think you could help me with a few more questions? I can post them as new ones

Answer 14

Sure