johnny66666666666666 johnny66666666666666

11-02-2020
Mathematics

contestada

Which is a simplified form of the expression 3a + 7 – a – 7?
A. 2a
B. 4a
C. 2a + 14
D. 4a – 14

Respuesta :

Connera911 Connera911

11-02-2020

Answer:

Choice A.

Step-by-step explanation:

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

Answer Link

Yang100 Yang100

16-02-2020

Answer:

A) 2a

Step-by-step explanation:

3a+7-a-7

3a-a+7-7

2a+7-7

2a

Answer Link

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