SOLUTION: solve the system 2x - 2y + 5z = 14 4x - 5y + 2z = 10 x + 2y + 3z = 10

Algebra ->  Systems-of-equations -> SOLUTION: solve the system 2x - 2y + 5z = 14 4x - 5y + 2z = 10 x + 2y + 3z = 10      Log On


   

Question 81504: solve the system
2x - 2y + 5z = 14
4x - 5y + 2z = 10
x + 2y + 3z = 10
Found 2 solutions by longjonsilver, rapaljer:
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
look at my Lesson on Cramer's Rule - that shows you how to solve these using determinants
Jon

Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
Are you allowed to use graphing calculators? In particular, if you are allowed to use a TI 85 or 86, there is a function on your calculator called [2nd] [SIMULT] that solves systems of equations without having to use either the elimination method or Cramer's Rule. If you have a TI 83+ or a TI 84, look in [APPS] for a program called [POLYSMLT]. If you don't have this program on these calculators, you can get it from Texas Instruments and have it put on your calculator. It's the easy way to solve a problem if it is allowed and if you have a calculator that will do it.

R^2 at SCC