Soal:

By Posted on

Tentukan nilai X yang memenuhi
persamaan 12x 6] + 1*211 = 5

Ini gimana ya caranya ?
Bisa tolong bantuuuu ?

Soal:

PEMBAHASAAN

Bagian a)

| x-7 | =13

*) x-7 = 13

x = 13 + 7

x = 12

**) x-7 = -13

x = -13 + 7

x = -6

HP= {-6, 20}

Bagian b)

| 3 x -6 | = 12

*) 3 x -6 = 12

3x = 12 + 6

3x = 18

x = 18/3

x = 6

**) 3x -6 = -12

3x = -12 + 6

3x = -6

x = -6/3

x = -2

HP={-2, 6}