Question

which inequality is equalivalent to |x-4|<9​

Answer 1

Answer:

-5 < x < 13

Step-by-step explanation:

$|x-4|<9\iff x-4<9\ \wedge\ x-4>-9\qquad\text{add 4 to both sides}\\\\x<13\ \wedge\ x>-5\to-5<x<13$