Question 610244
|3y-2|+4=21 


|3y-2|=21 -4


|3y-2|=17


3y-2=17 or 3y-2=-17


3y=17+2 or 3y=-17+2


3y=19 or 3y=-15


y=19/3 or y=-15/3


<font color="red">y=19/3 or y=-5</font>

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