101.55>|1.55x|
abs(1.55x) < 101.55
Now I find it easiest to think of these by drawing a number line and shading in where 1.55x must be.
Since I can't show you the diagram I will try to explain.
What it is really saying is that the distance from 1.55x is less than 101.55 from 0. (pos or neg direction)
so
1.55x must be between -101.55 and +101.55
so
-101.55 < 1.55x < 101.55
divide everything by 1.55
-65.516 < x < 65.516 this is correct to 3 decimal places.
+118654 
