Here's the question you clicked on:
Denebel
If you knew the answer to an inequality was something (say, -2 < x <10/3) how would you work backwards to find the inequality problem?
there could be an infinite number of them
for example \[-2<x<\frac{10}{3}\iff -6<3x<10\] \[\iff -6+x<4x<10+x\] etc etc