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zmey [24]
3 years ago
14

Which is a simplified form of the expression 3a + 7 – a – 7?

Mathematics
2 answers:
zheka24 [161]3 years ago
7 0

Answer:

A) 2a

Step-by-step explanation:

3a+7-a-7

3a-a+7-7

2a+7-7

2a

lord [1]3 years ago
3 0

Answer:

Choice A.

Step-by-step explanation:

3a + 7 - a - 7 = 3a+7 - a+7 = 3a-a = 2a

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