6m+5n-4n-4m+3n+m=4n+3m
7m+6n-5n-8m+3n+m=4n
7x-8y+9y-5x+6=2x+y+6
3x-5y+7y-2x+4=x+2y+4
1) 3m+4n
2) 4n
3) 2x+y+6
4) x+2y+4
6m+5n-4n-4m+3n+m=4n+3m
7m+6n-5n-8m+3n+m=4n
7x-8y+9y-5x+6=2x+y+6
3x-5y+7y-2x+4=x+2y+4
1) 3m+4n
2) 4n
3) 2x+y+6
4) x+2y+4