Решите уравнение: 13/4x-33/7=31/12x-45/14

Question

Решите уравнение:
13/4x-33/7=31/12x-45/14

Answer 1

13/4x-31/12x=33/7-45/14
39/12x-31/12x=66/14-45/14
8/12x=21/14
x=21/14:8/12=21/14*12/8
x=9/4
x=2 1/4

Answer 2

13/4х - 33/7 = 31/12х - 45/14
13/4х - 31/12х = 33/7 - 45/14
( 39х - 31х)/12 = ( 66 - 45)/14
8/12х = 21/14
4/3х = 3/2
Х = 9/8
Х = 1,125