himpunan penyelasain dari |3x-2|=7 adalah

|3x − 2| = 7
(a)
3x − 2 = 7
3x = 7 + 2
3x = 9
x = 9/3
x = 3

(b)
3x − 2 = −7
3x = −7 + 2
3x = −5
x = −5/3

HP = {−5/3, 3}

|3x-2| = 7
☞ 3x-2 = 7
3x = 7+2
3x = 9
x = 9/3
x = 3

☞ -(3x-2) = 7
-3x+2 = 7
-3x = 7-2
-3x = 5
x = - 5/3

HP : {- 5/3, 3}