Question

Плиз, решите, срочно нужно >///

Answer 1

1) (3x+y)-(x-4y)
3x+y-x+4y
2x+5y
2) (x+6y)-(8x-y)
x+6y-8x+y
7y-7x
7(y-x)
3) (m+n)+(m-n)
m+n+m-n
2m
4) (6m+5)-(m-1)
6m+5-m+1
5m+6
5) (2x+y)-(x+y)
2x+y-x-y
x
6) (2m-3n)+(2m+3n)
2m-3n+2m+3n
4m