Question

Solve the proportion

x+1 14

----- = -----

x-1 20


a. -3/17 b.10/7 c.7/10 or d. -17/3

Answer 1

x = -17/3

Explanation:

x+1 / x-1 = 14/20

20(x + 1) = 14(x - 1)

20x + 20 = 14x - 14

20x - 14x = -14 - 20

6x = -34

x = -34/6

x = -17/3