CORNELL UNIVERSITY
Reading edition
ELEMENTARY ALGEBRA
1. Find the H. C. F.:
2. Solve the following set of equations:
3. Expand and simplify:
4. An automobile goes 80 miles and back in 9 hours. The rate of speed returning was 4 miles per hour faster than the rate going. Find the rate each way.
5. Simplify:
6. Solve for x:
7. A, B, and C, all working together, can do a piece of work in days. A works twice as fast as C, and A and C together could do the work in 4 days. How long would it take each one of the three to do the work alone?
