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

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) (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.
RELATED QUESTIONS
5r-s+t=-9 2r+2s-3t=5... (answered by Alan3354)

(3r-rt/6r^2t)*(3/9-t^2) My answer: r/2r^2t(3+t) I know I'm not supposed to have... (answered by macston)

May I have help w/ this one? 1) 3r +5s + t =0 3r �s �3t = 4 -3r-4s-4t= -19 (answered by stanbon,mgmoeab,MathTherapy)

I have tried for 2 days to solve this one! I have the answers, and they do solve the... (answered by venugopalramana,Fermat)

Okay, here goes another easy one that I can't solve: Printer A can print a report in 3... (answered by amnd)

Can you step me through this process? Given the two functions r(t) = 3t + 4 and t(s) = (answered by vleith)

I can't figure this matrix system out Solve system using a matrix: r + 2s - t =4... (answered by MathLover1)

r - s + 2t = -1 2r + 2s - t = 0 r + s = 5 2r + 2t = 4 (answered by Alan3354)

I can't seem to wrap my mind around how to round an equation at the end of a problem.... (answered by jim_thompson5910,checkley77,rapaljer)