Bonjour
A = 3x + 1/4 - (3 - 2x)
A = 3x + 1/4 - 3 + 2x
A = 3x + 2x + 1/4 - 3
A = 5x + 1/4 - 12/4
A = 5x - 11/4
B = - (1/3x + 2) + (5x - 3)
B = - 1/3x - 2 + 5x - 3
B = - 1/3x + 15/3x - 5
B = 14/3x - 5
C = (2/3x + 1/3) - (5/6 + 2/6x)
C = 2/3x + 1/3 - 5/6 - 2/6x
C = 4/6x - 2/6x + 2/6 - 5/6
C = 2/6x - 3/6
C = 1/3x - 1/2
D = 1/2 + 2x - (x - 3/2)
D = 1/2 + 2x - x + 3/2
D = x + 4/2
D = x + 2.
