Posted by Sammy on .
7i1 + 9i2 = 3
5i1 + 7i2 = 1
where i1 and i2 represent current.
Find the values of i1 and i2 using matrices.
? any help
thanks

Maths 
Steve,
Using x and y for syntactical reasons, See
http://www.wolframalpha.com/input/?i=%7B%7B7,9%7D,%7B5,7%7D%7D*%7B%7Bx%7D,%7By%7D%7D+%3D+%7B%7B3%7D,%7B1%7D%7D