Question

Nilai x dari persamaan 1/5 x - 2= ×-1/ 2 adalah.......

Answer 1

      1/5x - 2 = x - 1/2
10(1/5x - 2) = 10(x - 1/2)
      2x - 20 = 10x - 5
    2x - 10x = -5 + 20
           -8x = 15
              x = -15/8

Jadi nilai x adalah -15/8.

Answer 2

1/5x - 2 = x - 1/2
-2 + 1/2 = x - 1/5x
-3/2 = 4/5x
x = -3/2 x 5/4
x = -15/8
x = - 1 7/8