1) 10x + 4x = (10 + 4) • x = 14x;
2) 18b – 5b = (18 – 5) • b = 13b;
3) 9y – y + 2y = (9 – 1 + 2) • y = 10y;
4) 17p + 9p – 12p = (17 + 9 – 12) • p = 14p.
Завдання №335
Спрости вираз.
1) 10x + 4x = (10 + 4) • x = 14x;
2) 18b – 5b = (18 – 5) • b = 13b;
3) 9y – y + 2y = (9 – 1 + 2) • y = 10y;
4) 17p + 9p – 12p = (17 + 9 – 12) • p = 14p.