Penyelesaian dari |5x-7|=8 adalah

|5x - 7| = 8

alternatif (1)
5x - 7 = 8
5x = 8 + 7
5x = 15
x = 15 : 5
x = 3

alternatif (2)
5x - 7 = -8
5x = -8 + 7
5x = -1
x = -1/ 5

HP {x = 3 dan x = -1/5}

5x = 8+7
x = 15:5
x = 3