Question

решите уравнения : 4-7x /15 +1-x /3 = 4-2x+1/5

Answer 1

Ответ:

Пошаговое объяснение:

(4-7x) /15 + (1-x )/3 = 4-(2x+1)/5  \*15

4 - 7x + 5*(1 - x) = 4*15 - 3*(2x + 1)

4 - 7x + 5 - 5x = 60 - 6x - 3

9 - 12x = 57 - 6x

-6x + 12x = 9 - 57

6x = -48

x = -48 : 6

x = -8