1) X = 2

2) X = -8

3) X = 3

4) X = 10

5) X = 6

6) X = -4

7) X = -10

8) X = 2

9) X = 2

10) X = 1 4/8 (pecahan campuran)

Langkah - langkah penyelesaian:

1) 6x + 8 = 20

8 - 20 = -6x

-12 = -6x

X = -12/-6

X = 2

2) 3x - 6 = 18

-6 - 18 = -3x

24 = -3x

X = 24/-3

X = -8

3) 5x + 2x + 3 = 24

7x = 24-3

7x = 21

X = 21/7

X = 3

4) 7x - 2 = 5x + 18

7x - 5x = 18 + 2

2x = 20

X = 20/2

X = 10

5) 6x + 5 = 3x + 23

6x - 3x = 23 - 5

3x = 18

X = 18/3

X = 6

6) 2x -7x = 20

-5x = 20

X = -4

7) -6x + 3x = 24 + 6

-3x = 30

X = 30/-3

X = -10

8) 9 + 3 = 3x + 6

12 - 6 = 3x

6 = 3x

X = 6/3

X = 2

9) 6x + 5x -7 = 15

11x = 15 + 7

11x = 22

X = 22/11

X = 2

10) 8x + 5 = 10 + 7

8x = 10 + 7 - 5

8x = 17 - 5

X = 12/8

X = 1 4/8

Sekian dari saya, semoga membantu dan semoga dapat dipahami.. Thx:)

Maaf kalau slh..

Kelas: VII

MATA PELAJARAN: MATEMATIKA

MATERI: ALJABAR

#Math