Tentukan himpunan penyelesaian dari :

Jawaban:

1. x= 9

2. 1/3

3. 7/12

4. -6/13

Penjelasan dengan langkah-langkah:

1. 4x-5 = 2x + 13

4x – 2x = 13+5

2x = 18

x = 18/2

x = 9

2. -7x-6 = -13x-4

-7x+13x = 6-4

6x = 2

x = 2/6

x = 1/3

3. 2x – 1/3 = 4x+5/6

2x-4x = 5/6 + 1/3

2x-4x = 5/6 + ( 1/3 x 2/2 )

2x-4x = 5/6 + 2/6

2x = 7/6

x = 7/6 : 2/1

x = 7/6 x 1/2

x = 7/12

4. 14x+7 = x+1

14x-x = 1-7

13x = -6

x = -6/13