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April 20, 2014

April 20, 2014

Posted by **Anonymous** on Tuesday, February 21, 2012 at 8:38am.

18x + 6y = 78

12x + 54y = -48

- algebra -
**drwls**, Tuesday, February 21, 2012 at 8:59amy = 13 - 3x (from the first equation)

Substitute that for y in the second equation, and solve for x.

12x + 54*13 - 162x = -48

150 x = 750

Take it from there.

- algebra -
**deb**, Monday, September 17, 2012 at 1:33pm48 divided by 2(9+3)=

parent needs answer.... i came up up with answer of 2

son has different answer of 288

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