Question

Запишите в виде суммы.
1) a-b-c+d
2) -m+n-k-e
3) 2a-3b+4c-10m
4) -5p+3q-10m

Answer 1

$1)a - b - c + d = a + ( - b) + ( - c) + d$
$2) - m + n - k - e = - m + n + ( - k) + ( - e)$
$3)2a - 3b + 4c - 10m = 2a + ( - 3b) + 4c + ( -10m )$
$4) - 5p + 3q - 10m = - 5p + 3q + ( - 10m)$