Posted by SaRa on Tuesday, September 20, 2011 at 6:15pm.
how do you solve this by substitution:
step by step
1. 5xy=16
5x+2y=13
2. 3x3y=9
2x4y=16
3. x=6y
y=2/3x+5
thank you!

Math  PsyDAG, Wednesday, September 21, 2011 at 1:41pm
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
See your later post.