Algebra Topics and Practice

Practice of pre-skills and solving equations

Answers to part I

1. x = 7 (x = 3/7 is extraneous) 2. This one is tricky x = 2

3. (Use ZPP) x = 0, x = 2, x = 14 4. x = 2 or x = -1

5. no solution 6. x = -10 or x = 12.5

7. no solution 8. \/(aB) = c or. -\/(aB)=c

9. a = (-cd)/(b-ce) 10 no solution

11. x = 2 ( x = -2 is extraneous)

Answers to part 2

1. x = -5/4 (x = 5/2 is extraneous) 2. no solution

3.x = 7/5 or x = 15 4. x = -20/6 or x = -20/3

5. x = 13 6. x = 2 or x = -8/3

7. x= 2 or x = -2 8. a = c^2/b

9. d = (ab)/(ce-c) 10. same as above

Solving Inequalities