Question

O) 4.(x-1) -3.(x-1/2=1/2


P) 2/3(x-1)=3/2(x+1)

Q) -1/2(x-1)=x

1) 2x+6=x+18

Answer 1

O) 4.(x -1) -3.(x -1/2 = 1/2
     4x -4 -3x -3/2 = 1/2
     4x -3x = 1/2 +4 +3/2
     x =  1/2 + 8/2 + 3/2
     x = 1 + 8 + 3 / 2
     x = 12/2
     x = 6 

P) 2/3(x-1)=3/2(x+1) 
    2x/3 -2/3 = 3x/2 + 3/2
    2x/3 - 3x/2 = 3/2 + 2/3  mmc 6
    2.2x/6 - 3.3x/6 = 3.3/6 + 2.2/6 
    4x - 9x = 9 + 4
    -5x = 13
       x = -13/5

Q) -1/2(x-1)=x 
     -x/2 + 1/2 = x
     -x/2 -x = - 1/2
      -x/2 - 2x/2 = 1/2
      -x -2x = 1
      -3x = 1
         x = -1/3

1) 2x+6=x+18
    2x - x = 18 -6
    x = 12