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

Mathematics · Middle School · Mon Jan 18 2021

Answered on

Given the numerical equation:

3a   + 7 - a - 7

Simplify the expression.

Solution:

In order to simplify the expression, we simply need to combine like terms. 

= 3a + 7 - a - 7

= 2a 

Final answer:
A. 2a