selesaikan setiap persamaan nilai mutlak 2|x-5|+7=14

Bab Nilai Mutlak
Matematika SMA Kelas X

2 | x - 5| + 7 = 14
2 |x - 5| = 14 - 7
|x - 5| = 7/2

x - 5 = 7/2
x = 3 1/2 + 5
x = 8 1/2
x = 17/2

x - 5 = -7/2
x = 5 - 7/2
x = 10/2 - 7/2
x = 3/2

HP = { 3/2, 17/2 }