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April 21, 2014

Homework Help: math need asap

Posted by SAP on Thursday, September 30, 2010 at 10:00pm.

4x+5y=27
x=26-4y

4(26-4y) + 5y = 27
104 - 16y+ 5y = 27
-21y = - 77
21y = 77
y = 77/31

Now, Im suppose to return to the 2nd equation x=26-4y and substitute 77/31 for x, I dont understand if the is correct way or how to get the answer for the ordered pair.

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