Question

7.EE.1.1

An expression is shown.
(0.25n - 0.3) – (0.8n - 0.25)
Create an equivalent expression without parentheses.

Answer 1

-0.55n - 0.05

Explanation:

(0.25n - 0.3) – (0.8n - 0.25)

When subtracting the signs change

0.25n - 0.3 - 0.8n + 0.25

Regroup like terms

0.25n - 0.8n - 0.3 + .25

Combine like terms

-0.55n - 0.05

Answer 2

-0.55n - 0.05

Explanation:

You can start by distributing:

(0.25n - 0.3) - (0.8n - 0.25)

0.25n - 0.3 - 0.8n + 0.25

Then, you can combine like terms(0.25n & -0.8n; -0.3 & 0.25)

-0.55n - 0.05