Algebra
posted by David .
Hi. I am having some problems with substitution method and i just can't seem to get these right. I have
1. 2x  3y = 1 with y = x1
2. 4x + y = 6 with 5x y = 21 and finally,
3. 5x + y =3 with 3x 8y = 24

post your work on each one, as separate questions. We and you need to see where you are going wrong.