Question

7.9 + x + 4x

Explanation:

Step1: Identify like terms

The expression is \(7.9 + x + 4x\). The like terms are \(x\) and \(4x\).

Step2: Combine like terms

Combine \(x\) and \(4x\) by adding their coefficients. The coefficient of \(x\) is 1, and the coefficient of \(4x\) is 4. So \(x + 4x=(1 + 4)x = 5x\).

Step3: Write the simplified expression

Now, the expression becomes \(7.9+5x\).

Answer:

\(7.9 + 5x\)