Question

Selesaikan persamaan berikut !
Soal A : 2x - 1 = 3
Soal B : 5 - 3x = 11
Soal C : 6x - 4 = 2x + 12
Soal D : 2 (1 - x) = 3 (2x - 4)

Answer 1

A : 2X=3+1
     2X=4
       X=2
B: -3X=11-5
     -3X=6
        X= -2
C:  6X-2X= 12+4
       4X  = 16
         X=4
D:   2-2X= 6X-12
       -2X-6X = -12-2
          -8X= -14
              X= 1,75

Answer 2

Soal A
2x - 1 = 3
2x = 3 + 1
2x = 4
x = 4 : 2 = 2

Soal B
5 - 3x = 11
-3x = 11 - 5
-3x = 6
x = 6/(-3)
x = -2

Soal C
6x - 4 = 2x + 12
6x - 2x = 12 + 4
4x = 16
x = 16/4
x = 4