Question

1560.
Решите уравнение: 1)x/3+x/4=5/12+x/6 2)x/5+x/4=x/2-1/4​

Answer 1

Ответ:

1. х = 1

2. х = 5

Пошаговое объяснение:

1)x/3+x/4=5/12+x/6

(4х+3х)/12 = 5/12+2х/12

7х/12 - 2х/12 = 5/12

5/12х = 5/12

х = 5/12:5/12

х = 1

2)x/5+x/4=x/2-1/4​

(4х+5х)/20 = 10х/20-5/20

9х/20 - 10х/20 = -5/20

-х/20 = -5/20

х = -5/20/(-1/20)

х = -5/20*(-20)

х = 5