bonjour
a. 4(1-x)+(3 x+1)
= 4 - 4 x + 3 x + 1
= - x + 5
b. 3(2 x-5)-2(x-1)
= 6 x - 15 - 2 x + 2
= 4 x - 13
c. 3(3 x-2)-(2-x)
= 9 x - 6 - 2 + x
= 10 x - 8
d. -4(x-2)+3(2 x+1)
= - 4 x + 8 + 6 x + 3
= 2 x + 11
e. 3(2 x-2)-3(2-3 x)
= 6 x - 6 - 6 + 9 x
= 15 x - 12