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USPshnik [31]
4 years ago
14

(+30) + (+43)

84 + + 21" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
zimovet [89]4 years ago
6 0

Answer:

1. 73

2.-63

Step-by-step explanation:

1. 30+43=73

2. -84+21= 21-84=-63

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Guessing these are the options:

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4 + (-8) ___ 6 + (-8) + (-6)

If the signs are the same, you add. If you have one positive and one negative sign, you minus:

4 + (-8) = 4 - 8 = -4

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