Hi all,

Really, really struggling with this question.

I've tried using a few examples but I cant seem to get narrow down 3 terms to just 1.

I always end up with 2 letters/terms remaining.

The 3 equations I have are:

7i + 8ii + 7iii = 2 (Equation 1)

6i + 7ii + 5iii = 8 (Equation 2)

6i + 9ii + 6iii = 2 (Equation 3)

So I need to work out the values for i, ii and iii.

I tried using the 3 step procedure as described in a text book I have. But it doesn't seem to work.

I hope someone can help.