Hmmm, I was doing well until I came up against these little buggers.

4x + 3= 6 and

2x - 1

3x - 2= -5

x + 4

Solve for x

I come up with x = -9/8 on the first, whilst the text book has 8/9 and second x = 9 and -9/4 respectively.

any help would be greatly appreciated.

P.S. it was hard enough to write out the formulas above, can anyone lead me to where I might learn a quicker way. thanks again.

Chris.