Упростить вырожения : (7n +3m) + (8n -5m) - 10n + 2m

[latex](7n+3m)+(8n-5m)-10n+2m = 7n+3m+8n-5m-10n+2m[/latex] [latex]= 7n+8n-10n+3m+2m-5m = 15n-10n+5m-5m=5n;[/latex]

7 n + 3 m + 8 n - 5 m - 10 n + 2 m = 5 n