Bonjour
A = 3 (1/4 + x) - 1/4
A = 3/4 + 3/4x - 1/4
A = 3/4x + 2/4
A = 3/4x + 1/2
B = 2/3x + 5 (x - 1/6)
B = 2/3x + 5x - 5/6
B = 2/3x + 15/3x - 5/6
B = 17/3x - 5/6
C = 3/4 (x - 5) + 1/2
C = 3/4x - 15/4 + 1/2
C = 3/4x - 15/4 + 2/4
C = 3/4x - 13/4
D = 2 + 3 (1/5x - 1/3)
D = 2 + 3/5x - 3/3
D = 3/5x + 2 - 1
D = 3/5x + 1.