Question

Решите уравнение 2/3(11/2+3/5)-4/5(5/12x-1/2)=1 3/5

Answer 1

2/3(11/2+3/5)-4/5(5/12x-1/2)=1 3/5 
11/3 + 2/5 - 1/3x + 2/5 = 1 3/5 
- 1/3x = 1 3/5 - 4/5 - 11/3 
- 1/3x = 4/5 - 3 2/3 
- 1/3x = 12/15 - 2 25/15 
- 1/3x = - 2 13/15 
x = - 2 13/15 : ( - 1/3 )
x = + 43/15 : 1/3 
x = 43/5 
x = 8 3/5 ( или 8,6 )