Номер 1295

Зведи подібні доданки:

1) 5m – 4n – 3m + 2n = 2m – 2n;

2) 1/12p – 1/3p – 1/4p = (1–4–3)/12p = –6/12p = –1/2p;

3) –2x + 3y – 3x + 5y = –5x + 8y;

4) 0,12a – 0,48a – 0,37a = –0,73a;

5) 12,9b + 13,7c – 4,5b = 8,4b + 13,7c;

6) m + t – m + t = 2t.