s9152596 s9152596

19-12-2020
Mathematics

contestada

evaluate 7 - (-19) - 18 + (-19) + 18

Respuesta :

vinny1203 vinny1203

19-12-2020

7 - (-19) - 18 + (-19) + 18

= 26 - 18 + (-19) + 18

= 8 + (-19) + 18

= - 11 + 18

= 7

Remember:

• follow BEDMAS or PEDMAS
• always go from left to right
• 2 negatives = positive
• 2 positives = negative
• negative and a positive = negative (and vice versa)

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