Subtract 2 of equation 1 from equation 2 yields -2y=-30, y=15. Substituting into eq. 1 yields 4x=62, x=15.5. But this is contradicted in equation 2 which yields 8x+60=4; 8x=56. Thus we have no solution.
Apr 20th, 2015
Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.