Завдання:
Спрости вираз:
1) m + 2 – 13 – m + 24;
2) –19 – x + 28 – (–5) + x – 12.
Розв'язок:
1) m + 2 – 13 – m + 24 = 26 – 13 = 13
2) – 19 – x + 28 – (-5) + x – 12 = 33 – 12 – 19 = 33 – 31 = 2
Спрости вираз:
1) m + 2 – 13 – m + 24;
2) –19 – x + 28 – (–5) + x – 12.
1) m + 2 – 13 – m + 24 = 26 – 13 = 13
2) – 19 – x + 28 – (-5) + x – 12 = 33 – 12 – 19 = 33 – 31 = 2