Tom has a large photo he wants to shrink to wallet-sized. it's width is 20 centimeters and it's len is 30 centimeters. if he wants the width to be 5 centimeters what should the length be?

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x