Question

РЕШИТЕ СРОЧНО!!! ДАЮ 20 БАЛЛОВ!!!!

Answer 1

Ответ:

Пошаговое объяснение:

a)(2x + 3)(4x - 3) - 8x² = 2x - 17

8x² - 6x + 12x - 9 - 8x² = 2x - 17

6x - 9 = 2x - 17

6x - 2x = -17 + 9

4x = -8

x = -8 : 4

x = -2

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б) (5x - 1)/4 - (x - 2)/3 = 10 - x (*12)

3*(5x - 1) - 4*(x - 2) = 12*(10 - x)

15x - 3 - 4x + 8 = 120 - 12x

11x + 5 = 120 - 12x

11x + 12x = 120 - 5

23x = 115

x = 5