SOLUTION: I really need help solving this problem using Cramer's rule {x-y=2 y-x+4=0 I don't understand how to do it when there

Algebra.Com
Question 595862: I really need help solving this problem using Cramer's rule {x-y=2
y-x+4=0
I don't understand how to do it when there's an extra number involved (like the 4 in this case)
Answer by jsmallt9(3758)   (Show Source): You can put this solution on YOUR website!
Just use algebra to get the second equation into the form you need for Cramer's rule. Subtracting 4 from each side we get:
y - x = -4
You also want the x in front. So change it to addition (so you can change the order of the terms):
y + (-x) = -4
Now put the x in front:
(-x) + y = -4

Now your system is:
x - y = 2
-x + y = -4

You should be able to use Cramer's rule now.
RELATED QUESTIONS

This is probably a really stupid question. Please bear with me. I was reading this... (answered by greenestamps)
2x+y=-4 x+y=-7 Find the first variable and isolate it. Then solve for that variable.... (answered by Alan3354,Theo,MathTherapy)
When using Cramer’s Rule:... (answered by Alan3354,Edwin McCravy,richwmiller)

I DONT UNDERSTAND THIS PLEASE HELP..!

Use Cramer’s rule to solve for y in the... (answered by tlwright)

I really don't know how to or do this stuff since our teacher makes use do it on the... (answered by jim_thompson5910)

I could really use some help on these problems.  I am working on Quadratic Equations and... (answered by Alan3354)

my math teacher taught us how to do this but i don't understand (3,2), y = x + 5  (answered by josgarithmetic)

I have been working on this for days. If anyone can help, I would appreciate it. I have... (answered by jim_thompson5910,stanbon)

12/x=4     I understand the golden rule in this situation is to do the opposite.  The... (answered by jim_thompson5910)