Question

question
which expression is equivalent to (6a + 4a - 7a)?
answer
(\bigcirc) (3a) (\bigcirc) (a + 1) (\bigcirc) (1 - a) (\bigcirc) (17a)

Explanation:

Step1: Combine like terms

First, identify the like terms in the expression \(6a + 4a - 7a\). The like terms are \(6a\), \(4a\), and \(-7a\) since they all have the variable \(a\).
To combine them, we add the coefficients: \(6 + 4 - 7\).
Calculating the sum of the coefficients: \(6 + 4 = 10\), then \(10 - 7 = 3\).
So, combining the like terms gives \(3a\).

Answer:

\(3a\) (corresponding to the option with \(3a\))