simplify the expression. 2(n + 2n - 5)

Explanation:

Step1: Combine like - terms inside parentheses

$n + 2n=3n$, so the expression becomes $2(3n - 5)$

Step2: Apply the distributive property

$2\times3n-2\times5 = 6n-10$

Answer:

$6n - 10$