SOLUTION: solve for y and x using matrix equaion [3x (over) y-1] = [y+1 (over) x] Sorry I dont know how to write it online.

Algebra ->  Matrices-and-determiminant -> SOLUTION: solve for y and x using matrix equaion [3x (over) y-1] = [y+1 (over) x] Sorry I dont know how to write it online.      Log On


   

Question 833075: solve for y and x using matrix equaion [3x (over) y-1] = [y+1 (over) x]
Sorry I dont know how to write it online.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
You mean like this?
%28matrix%282%2C1%2C3x%2Cy-1%29%29=%28matrix%282%2C1%2Cy%2B1%2Cx%29%29
or more simply,
1.3x=y%2B1
2.y-1=x
Substitute eq. 2 into eq. 1,
3%28y-1%29=y%2B1
3y-3=y%2B1
2y=4
y=2
Then from eq. 2,
x=y-1
x=2-1
x=1