http://defibrillatorsolutions.com/aed-blog/2009/10/algebra-question-please-help-me/ Automated External Defibrillator (AED) Blog - Training, Success Stories and more... Tue, 13 Sep 2011 09:41:38 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://defibrillatorsolutions.com/aed-blog/2009/10/algebra-question-please-help-me/comment-page-1/#comment-5520 Jasmin Fri, 30 Oct 2009 00:03:15 +0000 http://defibrillatorsolutions.com/aed-blog/2009/10/algebra-question-please-help-me/#comment-5520 110+3x+2y=180 3x+2y=70 70+9x+y=180 9x+y=110 y=110-9x sub this into the first equation 3x+2(110-9x)=70 3x+220-18x=70 -15x=-150 x=10 so y=110-9(10)=20 hope that helped! 110+3x+2y=180
3x+2y=70
70+9x+y=180
9x+y=110
y=110-9x
sub this into the first equation
3x+2(110-9x)=70
3x+220-18x=70
-15x=-150
x=10
so y=110-9(10)=20
hope that helped!

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