А) 24+3 (2y-12) б) -14а-(10-3а) в) -5а-5 (8-4а)-14 г)-+12)+(6y-8) д) 7 (3x+-x)-4(2-5x)

А) 24+3 (2y-12) =24+6y-36=6y-12

б) -14а-(10-3а) = -14a-10+3a= -11a-10

в) -5а-5 (8-4а)-14 = -5a-40+20a-14 = 15a-54

г)-6y-(-8y+12)+(6y-8) = -6y+8y-12+6y-8= 8y-20

д) 7 (3x+1)-(9-x)-4(2-5x) = 21x+7-9+x-8+20x=42x-10