5|×-7|+2=7 nilai x adalah

Bab Nilai Mutlak
Matematika SMA Kelas X

5 |x – 7| + 2 = 7
5 |x – 7| = 7 – 2
|x – 7| = 5/5
|x – 7| = 1

x – 7 = 1
x = 1 + 7
x = 8

x – 7 = – 1
x = -1 + 7
x = 6

HP = { 6, 8 }