Question

Using Cramers Rule, what is (x,y)
x+3y=-19
-7x + 2y = 41

Answer 1

D = (1*2) - ((-7)*3)

Now what?

Answer 2

D=23
Dx=-161
Dy=-92
therefore (-1/7, 4/7)

But it's saying the answer is -7,-4

Answer 3

D is the denominator. You're upside down.

Answer 4

That would make a lot of sense...Thank you!

Answer 5

You were close. Good work.