Question

Tentukan solusi dari PLSV berikut:
1. 3a = - 9
2. - 8b = - 16
3. k + 6 = - 2
4. L - 7 = 14
5.4 - c = 8-
6. - 3 - d = - 4
7. 3g - 7 = 8
8. 6h + 5 = - 31
9. 4 - 5w = 49
10. 13 - 8z = - 67
11.4e - 9 = 2e - 3
12. 3f + 8 = 4f + 9
13. 5m - 9 = 2m + 3
14. 6n - 11 = 13n + 3
15. (4i + 4)/9 = - 4
16. (6j - 14)/5 = 817. (6j - 14)/5 = 8
17. 1/4 * (8v - 12) = 1/3 * (9v + 12)
18. 3/5 * (25u + 40) = 1/8 * (24u + 960)
19. 2/3 * (18y - 27) = 3/4 * (12y - 44)
20. 5/6 * (24x - 48) = 4/5 * (10x + 40)



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Answer 1

1. 3a = - 9

a = -9/3 = -3

2. - 8b = - 16

-8b = -16/-8 = 2

3. k + 6 = - 2

k = -2-6 = -8

4. L - 7 = 14

L = 14 + 7 = 21

5.4 - c = 8-

-c = -8 - 4 = -12

6. - 3 - d = - 4

-d = -4 + 3 = -1

7. 3g - 7 = 8

3g = 8 + 7

g = 15/3 = 5

8. 6h + 5 = - 31

6h = -31 -5

h = -36/6 = -6

9. 4 - 5w = 49

-5w = 49 - 4

w = 45/5 = 9

10. 13 - 8z = - 67

-8z = -67 - 13

-8z = -80

z = -80/8 = -10

11.4e - 9 = 2e - 3

4e - 2e = -3 + 9

2e = 6

e = 6/2 = 3

12. 3f + 8 = 4f + 9

3f - 4f = 9 - 8

-f = 1

f = -1

13. 5m - 9 = 2m + 3

5m - 2m = 3 + 9

3m = 12

m = 12/3 = 4

14. 6n - 11 = 13n + 3

-13n + 6n = 3 + 11

-7n = 14

n = 14/7 = 2

15. (4i + 4)/9 = - 4

4i + 4 = -4 x 9

4i + 4 = -36

4i = -36 - 4

4i = 40

i = 40/4 = 10

16. (6j - 14)/5 = 817. (6j - 14)/5 = 8

(?)

17. 1/4 * (8v - 12) = 1/3 * (9v + 12)

2v - 3 = 3v + 12

-12 - 3 = 3v - 2v

-15 = v

18. 3/5 * (25u + 40) = 1/8 * (24u + 960)

3(5u + 8) = 3u + 120

15u + 24 = 3u + 120

15u - 3u = 120 - 24

12u = 96

u = 96/12 = 8

19. 2/3 * (18y - 27) = 3/4 * (12y - 44)

2(6y - 9) = 3(3y - 11)

12y - 18 = 9y - 33

12y + 9y = - 33 + 18

21 y = -15

y = -15/21

y = -5/7

20. 5/6 * (24x - 48) = 4/5 * (10x + 40)

5(4x - 8) = 4(2x + 8)

20x -8 = 8x + 32

20x - 8x = 32 + 8

12 x = 32 - 8

x = 24/12

x = 2