Question

Solve the system of equations below
x-2y=3
2x-3y=0
(3,9)

(9,3)

(-3,9)

(-9,3)

Answer 1

Multiply the top equation by -2

Answer 2

It would be D then right?

Answer 3

I think it is not.

Answer 4

How would I solvje the equation?

Answer 5

i have (-9, -6)

Answer 6

We have x-2y = 3 and 2x-3y = 0
Therefore, using the second equation we can say that
2x = 3y and therefore, x = 3y/2

Substituting the x we got from the second eqn to the 1st eqn we'll get
\[\frac{ 3y }{ 2 } - 2y = 3\]
Upon simplifying
3y-4y = 6
-y = 6
y = -6
x = -9

Answer 7

we both arrive at the same answer with @whalexnuker

Answer 8

There is no -9 -6 option

Answer 9

That much is apparent, lol

Answer 10

That means, none among the choices is correct.

Answer 11

x-2y=3
2x-3y=9
That's the right question, sorry. It would be D right?

Answer 12

(9, 3) @mikeshaw

Answer 13

So B

Answer 14

x - 2y = 3 -->(-2)
2x - 3y = 0
---------------
-2x + 4y = -6 (result of multiplying by -2)
2x - 3y = 0
---------------add
y = -6

now sub -6 in for y in either of the original equations
x - 2y = 3
x - 2(-6) = 3
x + 12 = 3
x = 3 - 12
x = -9

answer is (-9,-6)

hmmm... let me try it a different way....
x - 2y = 3 --> x = 2y + 3
now sub 2y + 3 in for x in the other equation
2x - 3y = 0
2(2y + 3) - 3y = 0
4y + 6 - 3y = 0
y + 6 = 0
y = -6

now sub -6 in for y
2x - 3y = 0
2x - 3(-6) = 0
2x + 18 = 0
2x = -18
x = -9

same answer : (-9,-6)

Answer 15

@kelliegirl33 We've all given him the same thing.

Answer 16

oh wait...you changed the question...
x - 2y = 3 -->(-2)
2x - 3y = 9
----------------
-2x + 4y = -6 (result of multiplying by -2)
2x - 3y = 9
----------------add
y = 3

now sub 3 in for y
2x - 3y = 9
2x - 3(3) = 9
2x - 9 = 9
2x = 9 + 9
2x = 18
x = 9

answer (9.3)

Answer 17

Its B