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21.08.2020 12:10 •  Математика

A) (7 + 7x) – (16 – 5x) = b) 7(4y – 3) – 2(- 6y – 1) =
c) (a + 2)∙3 + (1 – a) ∙(-2) =
d) 42a(7 – b) – 5b(7 – a) + 18ab =
e) -0,2(5x – 2y) – (-5y – 1) + (8 – 1,5x) + (-6,15y):3 =

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