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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