tentukan penyelesaian dri persamaan -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

-5Ix - 7I + 2 = -13
-5Ix - 7I = -13 - 2
-5Ix - 7I = -15
Ix - 7I = (-15) / (-5)
Ix - 7I = 3

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

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

HP = {4, 10}