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December 20, 2014

December 20, 2014

Posted by **Princess** on Tuesday, December 11, 2012 at 8:49am.

x - 2y = -3

simultaneous equation by elimination

- Math -
**Steve**, Tuesday, December 11, 2012 at 10:35amelimination is usually done with linear equations. Using substitution,

x = 2y-3, so we have

(2y-3)^2 + 9y^2 = 37

4y^2 - 12y + 9 + 9y^2 = 37

13y^2 - 12y - 28 = 0

(y-2)(13y+14) = 0

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