решите уравнения Срочно
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Объяснение:

1) 4-3x= (-7x) - 4

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

4x = -8

x = -2

2) 7x=5+2(6x-5)

7x = 5 + 12x - 10

7x - 12x = (-10) + 5

-5x = -5

x = 1

3) 9 + 5(4x-3) = 7x - 6

9 + 20x - 15 = 7x - 6

20x - 7x = (-6) + 15 - 9

13x = 0

x = 0

4) 25 - 4(3x + 5) = 7(4x+3)

25 - 12x - 20 = 28x + 21

(-12x) - 28x = 21+20-25

- 40x = 21

x = - 0.525

5) 6(2x + 7) - 2(6x - 5) = 3x - 2

12x + 42 - 12x + 10 = 3x - 2

12x - 12x - 3x = (-2) - 10 - 42

-3x = -54

x = 18

6) 11(x-2) - (2x-3) = 9(x+2)

11x - 22 - 2x + 3 = 9x + 18

11x - 2x - 9x = 18+22-3

0x = 37

Ответ 0