Math 112 Test 1 10 pts each (4 pts free!) Jan. 24, 2002

Solve for x:

1. 5x - (3x - 4 ) - 2 = 5 - 2(3x + 2)

2.

3.

4. - 1 ≤ 9 - 2x ≤ 11

(give answer in interval notation.)

5. mx - ay = 2x + c(x - 1)

6. 2x - y = 16

x + 3y = 1

7. |2x - 1| = 8

8. | 4x + 2 | < 4

9. | 3 - 2x | ≥ 9

10. If a and b are negative numbers and b/a is greater than 1, then is a-b positive or negative?

Bonus: 10 points each!

Solve for x: