Question

РЕШИТЕ НЕ ОБРАЩАЯ ВНИМАНИЕ НА СЛОВО ТОДЖЕСТВО РАВНЫМ
801

Answer 1

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