How do you write the compound inequality as an absolute value inequality: 1.3 ≤ h ≤ 1.5?

##|h-1.4|<=0.1##

Find the mid-point between the extremes of the inequality and form the equality around that to reduce it to single inequality. the mid-point is 1.4 so:

##1.3<=h<=1.5## => ##-0.1<=h-1.4<=0.1## => ##|h-1.4|<=0.1##