Mark asked his sister for $10. she gave him x4 times that because thats all she had in dollars at the moment. mark gave her back $20. what did he do wrong and why? use numbers, letters, and\or any other strategy to you out.

true

step-by-step explanation:

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