Bonjour,
1) 3(x-2)+6(4-x) = 3x-6+24-6x = -3x+18
2) 3/4(-12x+16/5) = -9x+12/5
3) 6((1/3)(x)+1)-12x = 2x+6-12x = -10x+6
4) (x+1/2)-3(x+1) = x+1/2-3x-3 = -2x-5/2
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Bonjour,
1) 3(x-2)+6(4-x) = 3x-6+24-6x = -3x+18
2) 3/4(-12x+16/5) = -9x+12/5
3) 6((1/3)(x)+1)-12x = 2x+6-12x = -10x+6
4) (x+1/2)-3(x+1) = x+1/2-3x-3 = -2x-5/2