ada yg bisa bantu gak.. PLSV dan PtLSV... dikumpulkan besok... makasihh

1. 2x -3 = 5
2x = 8
x = 4

2. 6-2x = 2
4 = 2x
2 = x

3. 5x - 7 = 2x + 18
3x = 25
x = 25/3 = 8,6

4. 9-6x=3
6 = 6x
1 = x

5. 21-2z = 15
6 = 2z
3 = z

6. 3x +10 = 5x -2
12 = 2x
6 = x

7. 4(5-2x) = -8
20-8x = -8
28 = 8x
7/2 (3,5) = x

8. ¼(x-2) = ½(x-1)+3
¼x - ½ = ½x - ½ + 3
¼x - ½x = -½+½ +3
-¼x = 3
x = 3/-¼ = -12