Enter a number in each box so that the expressions are equivalent. (A) 0.8 (2x + x) + 3(7 - 4.1x) =x + 21
(B) 12 (6x + 22y) =x +y
(C) (3x -) - (6x + 1) = -3x - 2
(D) 112x + 27y =(12x + 9y)

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Ответ:

u8p4

27.01.2023

Mathematics

-1 is the answer

Step-by-step explanation:

1) (-2)²-2

=4-2

2) 1-2

=-1

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Enter a number in each box so that the expressions are equivalent. (A) 0.8 (2x + x) + 3(7 - 4.1x) =x + 21 (B) 12 (6x + 22y) =x +y (C) (3x -) - (6x + 1) = -3x - 2 (D) 112x + 27y =(12x + 9y)