Question

2 1/6y-(7x-1 3/4y)+2 1/5x упростить выражение

Answer 1

13/6y - (7x - 7/4y) + 2,2 x = 
= 13/6y - 7x + 7/4y + 2,2x = 
= 13/6y + 7/4y - 4,8x = 
= 26/12y + 21/12y - 4,8x = 
= 47/12y - 4,8x