D Pearsons MyLab 8 Masterii P Take a Test mashal als x O mat

D Pearson\'s MyLab 8 Masterii P Take a Test mashal als x O mathud.com/student/playerTest.aspd?testld 150738154 Test: Assignment 3 (week 10) This Question: 1 pt Cick to select and enter your answer(s). 10 of 1

Solution

|9-3a|=|7-3a|

|9-3a|=±(7-3a)

when +

|9-3a|=7-3a

9-3a=7-3a

no a value

9-3a=-(7-3a)

9-3a=-7+3a

3a+3a=9+7

6a=16

a=16/6

a=8/3