Question

1. 3.2 - 5.1n - 3n + 5

Explanation:

Step1: Identify like terms

The expression is \(3.2 - 5n - 3n + 5\). The constant terms are \(3.2\) and \(5\), and the terms with \(n\) are \(-5n\) and \(-3n\).

Step2: Combine constant terms

\(3.2 + 5 = 8.2\)

Step3: Combine terms with \(n\)

\(-5n - 3n = -8n\)

Step4: Write the simplified expression

Combine the results from Step 2 and Step 3: \(8.2 - 8n\)

Answer:

\(8.2 - 8n\)