Question

Harlie's expression is 10n-4, which expression(s) are equivalent to Charlie's? Hint: Plug in three set values for "n" in each of the expressions to see if they are equivalent (ex. Plug in 2, 3, and 4 in each of the expressions).

Answer 1

`10n - 4 = 2(5n - 2)`

Explanation:

Given

Expression: 10n - 4

Required

Select equivalent expressions

This question requires options. Since none is provided, I'll answer the question generally.

`10n - 4`

Express 10 as 2 * 5 and 4 as 2 * 2

`10n - 4 = 2*5n - 2 * 2`

Factor out 2

`10n - 4 = 2(5n - 2)`

Hence: 2(5n - 2) is equivalent to 10n - 4.