Question

Tolong kerjakan nomor 1 sampai nomor 17 dengan lengkap pertanyaan ini khusus Kak syubbana

Answer 1

No 1) B
no 2) 3x - 5 = 16
    3x = 21
     x = 7

no 3) -3x - 5 = -5x + 11
     -3x + 5x = 11 + 5
     2x = 16
     x = 8

no 4) 2x + 7 + 24 = 51
    2x = 51 - 31
    2x = 20
    x = 10

no 5) A

no 6) 10x - 12 = 18
     10x = 18+12
      10x = 30

no 7) x + x+1 = 33
     2x + 1 = 33

no 8) 3x + 10 = 5x - 4
    3x - 5x = -4 - 10
     -2x = -14
     x = 7

no 9) 6x - 3 = 2x - 11
    6x - 2x = -11 + 3
     4x = -8
      x = -2

no 10) 3(x-5) = 7x + 1
     3x - 15 = 7x + 1
     3x - 7x = 1 + 15
      -4x = 16
       x = -4 

no 11)
(3x+5) - (2x-3) = -2
3x - 2x + 5 -(-3) = -2
x + 8 = -2
x = -2 -8
x = -10

no 12)

8(x+1) + 2(x+4) = 20
8x + 8 + 2x + 8 = 20
10x + 16 = 20
10x = 20-16
10x = 4
x = 4/10


no 13)

15x/5 -12 = 13
3x - 12 = 13
3x = 13+12
3x = 25
x = 25/3


no 14)
2a/3 - 1/4 = 31/4
2a/3 = 32/4
2a = 96/4
2a = 24
a = 12

no 15)

a) 2m - 3 = 7
    2m = 7+3
    2m = 10
     m = 5 (benar)
   

no 16) 

3x - 2 < 13
3x < 15
x < 5


no 17)

3x - 2 > 4x + 6
3x - 4x > 6+2
-x > 8
x < -8