Question

срочно!!!! решить 523 (1234)

Answer 1

Ответ:

Пошаговое объяснение:

15 + 6(3a + 4) = 0

15 + 18a + 24 = 0

39 + 18a = 0

18a = -39

a = -39 : 18

a = -2целая 1/6

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4x = 7(2x - 3) + 46

4x = 14x - 21 + 46

4x = 14x + 25

14x - 4x = -25

10x = -25

x = -25 : 10

x = -2,5

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3(t - 4) - 6 = 5(t - 3)

3t - 12 - 6 = 5t - 15

3t - 18 = 5t - 15

5t - 3t = 15 - 18

2t = -3

t = -3 : 2

t = -1,5

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2 - 5(2y - 1) = 3(4 - y) + 9

2 - 10y + 5 = 12 - 3y + 9

7 - 10y = 21 - 3y

10y - 3y = 7 - 21

7y = -14

y = -14 : 7

y = -2