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Roman55 [17]
3 years ago
11

-2a+7-3(-9-4a) how do I solve this?

Mathematics
1 answer:
Klio2033 [76]3 years ago
6 0

Answer:

34+4a

Step-by-step explanation:

-2a+7-3(-9-4a)

➡ -2a+7+27+12a

➡34+10a

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Check:
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In 2 hours, the faster bus travels 2 * 99 km = 198 km
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