Автор - Adil0504

Упростите выражение:
a) -4 (1,5c-1)+3 (c-5)
b) 4 (3x-y)-5 (x+y)
c) (2a-5)-(7-2a+4)

Ответ

Автор - АннаАрт
a) -4(1,5c-1)+3(c-5) = -6c+4+3c-15 = -3c-11
b) 4(3x-y)-5(x+y) = 12x-4y-5x-5y = 7x-9y
c) (2a-5)-(7-2a+4) = 2a-5-7+2a-4 = 4a-16

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