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nataliejohnson · May 5, 2011, 09:34 AM

17x-6y=403
2x+9y=193

smoothy · May 5, 2011, 09:37 AM

There are rules about doing your homework...

Like you are supposed to actually TRY it first. Rather than attempt to cheat so you can play with your playstation sooner.

Read this first: Expectations for the Homework Help board
Do not simply retype or paste a question from your book or study material

We won't do your homework questions for you.
You were given the assignment for you to learn.

If you come up with your own answer and post it for us to critique that is within reason.

If you have some SPECIFIC questions that you couldn't find or didn't understand, we may help with that.
But this is your assignment, so show us you have at least attempted to complete it on your own.

Thank you.

Unknown008 · May 5, 2011, 09:54 AM

There is a calculator to solve such equations simultaneously and they allow you to use it? What is the world coming to nowadays? _.

Anyway, the method doesn't matter. What matters is that you use the method which YOU find the easiest or you are more at ease with to solve it.

One of the saying of my maths teacher: "I don't care how you kill the cat, provided that it is killed". Of course, this is only a saying, no need to kill a cat :eek:

samuelspeak · May 6, 2011, 12:15 AM

I agree with everyone here. And that's quite a simple equation and shouldn't be difficult to solve if you are attentive in class. Crack it! :)

RPVega · May 9, 2011, 10:24 AM

First, try to determine which method, either by substitution
or elimination, is better (or easiest) for solving the
problem. I am going to use the elimination method here.

We are given:
17x - 6y = 403
2x + 9y = 193

Next, multiply both equations above by 9 and 6, respectively,
to eliminate the y-variable:

9 * (17x - 6y) = 9*403
6 * ( 2x + 9y) = 6*193

It is left as an exercize for you to evaluate the two
equations above. (Hint: the y-variable will be eliminated.