tentukan hp 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 }

-5 ( x-7 ) + 2 = -13
-5x + 35 + 2 = -13
-5x = -50
x = 10

atau
-5(-x+7) + 2 = -13
5x -35 + 2 = -13
5x = 35 -15
x = 20/5
x= 4

Hp = {4,10)