Tentukan himpunan penyelesaian dari -5 . | x-7 | + 2 = -13

Bab Nilai Mutlak
Matematika SMA Kelas X

-5 . |x - 7| + 2 = -13
-5 . |x - 7| = -13 -2
|x - 7| = -15/-5
|x - 7| = 3

x - 7 = 3
x = 3 + 7
x = 10

x - 7 = -3
x = 7 - 3
x = 4

HP = {4, 10}