View Full Version : College Alegbra
MICA23
Mar 27, 2007, 08:09 AM
Solve : 3X+6Y= -6 5X-2Y=14
Capuchin
Mar 27, 2007, 08:58 AM
okay so from the first one
3x + 6y = -6
divide this equation by 3 and rearrange for x, then use this x in your other equation. You will be able to get a value for y. Then you can finally use this value to get a value for x.
Elisha Grey
Jan 19, 2009, 03:35 PM
As Capuchin says, divide the first equation by 3 to get
x + 2y = -2. And the second equation is
5x - 2y = 14. Add these two equations to get
6x = 12, so x = 2,and fro the first equation we have
2 + 2y = -2, or 2y = -4, so y = -2
Capuchin
Jan 19, 2009, 04:07 PM
Elisha, once again:
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