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Adderb
Jan 19, 2007, 12:07 PM
2a - 3b = -13
-b = -2a - 7

Help?

Capuchin
Jan 19, 2007, 12:58 PM
from your second equation, b = 2a + 7,

put this into your first equation, and you will have an equation in terms of a
Once you have a value for a, you can work out b.

If you need further help, just ask!

Capuchin
Jan 20, 2007, 02:24 AM
Well yes gal, but the topic was "sub method problem" :p

taylor458031
Feb 5, 2007, 07:57 PM
5x-3y=-4
x+y=-4

cottoncandy_27713
Feb 27, 2007, 10:52 AM
Solve the system: x+6y=-2
5x-20y=5

Capuchin
Feb 27, 2007, 10:59 AM
Hi guys, we recommend you open a new post if you have a new question.

You can use the same method that I outlined above though.