Jawabanmu

2014-02-12T20:46:04+07:00
Bilangan asli = 1,2,3,4,5, ...

a. 6x + 5 = 26 - x                  Hp = { 3 }
    6x + 5 - 5 = 26 - 5 - x
          6x = 21 - x
    6x + x = 21
          7x = 21
            x = 21/7
            x = 3

b. 2 - 4x = 3                        Hp = {  }
    2 - 2 - 4x = 3 - 2
        -4x = 1
           x = 1/-4
           x = - 1/4

c. x - 12 = 2x + 36               Hp = {  }
    x - 12 + 12 = 2x + 36 + 12
           x = 2x + 48
     x - 2x = 48
        - x = 48
           x = 48/-1
           x = -48

d. (-5x - 4x) + 10 = 1             Hp = { 1 }
            -9x + 10 = 1
            -9x + 10 - 10 = 1 - 10
                    - 9x = -9
                        x = -9/-9
                        x = 1
2014-02-12T20:46:22+07:00
A.   x = 3
b.   x = 1,25
c.   x =  -60
d.   x=   9