How do I solve a three variable equation on my TI-83 graphing calculator?
[2010-03-24 12:32:32]

Q: I am needing to know how to solve three variable equations on my TI-83 calculator and have not had any luck trying to figure it out myself.

A: You could try using the [Math] > 0:Solver...

Let's say the problem was 2x + 3y − 7z = 6. In the Solver, you would have to put 0=2X+3Y−7Z−6.

From then on it's mainly just guessing-and-checking each value of x, y,

Buy Cheap Ti 83 Graphing Calculator
-Texas Instruments TI83 Graphing Calculator | Calculators

Why would I want a TI 83 you may ask? What about the 89? It’s a higher model, and has more buttons! Yes, that’s exactly it, it has more buttons, and way to many features you won’t use. I have a Ti 83+ (More memory than the origional, but same everything else) and it is great! It has built in Financial Apps, which is a nice addition (and helpful!) compared to the 82 (which it is also compatible with!). But the 89? Even the 85? They take greater than calculus students to even need/use those functions, and they are a much harder to learn calculator. The Calculus teacher at our school says that the 83 will get you all through calculus and most likely beyond college. My calculator, which is really easy to learn, came in handy the first day in Geometry. We had to figure an area of a wierd shape and we only had the co-ordinates, i punched them in, and POW, found the area. If you do get this calculator, a TI-Graph Link is a must, this allows you to download software and…

...

Read more...

Photostream

TI 83 Plus Graphing Calculator
Large view | Product Details | Related Products
Ti 83 Graphing Calculator - Bookshelf
TI-83 plus graphing calculator for dummies
288 pages
TI-83 plus graphing calculator for dummies

Do simple and complex calculations, analyze loans, even send files to your PC Nothing can crunch numbers like your TI-83 Plus, and this handy guide makes the ...

Digg Headlines

(1 diggs) Ti 83 Plus Graphing Calculator northoak Learn how the TI 83 graphing calculator by Texas Instruments can make your next math class a breeze.