SOLUTION: this did not come from a book but from a work sheet my teacher made R + S + T = 5 ; 2R - 7S + 3T = 13; 3R - 2S + 4T = -6 i am supposed to solve for all three variables bu

Algebra ->  Systems-of-equations -> SOLUTION: this did not come from a book but from a work sheet my teacher made R + S + T = 5 ; 2R - 7S + 3T = 13; 3R - 2S + 4T = -6 i am supposed to solve for all three variables bu      Log On


   



Question 200861: this did not come from a book but from a work sheet my teacher made
R + S + T = 5 ;
2R - 7S + 3T = 13;
3R - 2S + 4T = -6
i am supposed to solve for all three variables but i cant seem to fid an answer i have gone through half a notebook trying didferent methods help please !!!!!

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
R + S + T = 5 ;
2R - 7S + 3T = 13;
3R - 2S + 4T = -6
i am supposed to solve for all three variables
===============================================
I used a matrix method with a TI calculator to get:
R = 62
S = -6
T = -51
===============================================
Cheers,
Stan H.