Question

\[|x-9|=16~~~~~~~~~~~~solve~~~~~~~~~~\]

Answer 1

x-9 = 16 and x-9 = -16
so, x= 25 and x = -7

Answer 2

there are 2 equations, the easy way is to allow the RHS to be positive and negative

x - 9 = 16 and x - 9 = -16

solve the 2 equations for the solutions.

Answer 3

Um, what of |x^2 - 9| =16?

Answer 4

other way is to solve it by graph.