Question

x+1 7x-6 9-x

----- + ----------- + ------------- = 1

2 5 10

Answer 1

Ответ:

Пошаговое объяснение:

5*(x + 1) + 2*(7x-6) - 9 + x = 1*10

5x + 5 + 14x - 12 - 9 + x = 10

20x - 16 = 10

20x = 10 + 16

20x = 26

x = 26 : 20

x = 1,3