Math
posted by Euphoria .
Solve using Determinants and Cramer's Rule?
I was absent and missed the lecture on Cramer's rule and Determinants and have no idea how to start the homework..
The directions and problem are as follows:
Using Cramer's Rule, set this problem up to find "a". Only evaluate the Denominator. When finished with the Denominator, finalize the answer by putting it into the context: a=?/#
6a 4b 5c 2d = 5
7a +3b + c 3d = 6
2a  6b + 4c + 9d = 9
4a + 7b  8c 5d = 2
Thanks in advanced!
(Please show the steps and be as detailed as possible so I can study the process and complete the rest of the problems, thanks!)
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