PDA

View Full Version : substitution method: x + y = -9, x - y = 14



patti72458
07-12-2006, 10:52 PM
x+y=-9
x-y=14

solve

stapel
07-12-2006, 11:34 PM
Where are you stuck in the solving-by-substitution process? Which equation did you solve? For which variable? What did you get when you substituted?

Or are you requesting links to lessons on this topic?

Thank you.

Eliz.