Question

Wich of following is(are) the solution(s) to |x+3| = 12
Answer: x=9

Answer 1

x={9,-15}

Explanation:

|x+3|=12 means

x+3 could be 12 or -12 since |12|=12 and |-12|=12 are true

x+3=12 x+3=-12

x=12-3 x=-12-3

x=9 x=-15

Answer 2

the answer to this is

x=9,-15