Use the distributive property to expand and factor simple linear expressions.
Use factoring to show shared structure in context
Problem
\(\text{Four}~\text{equal}~\text{bundles}\) cost \(4x~+~12~\text{dollars}\) total. Factor out \(4\) to show the equal-bundle structure, then state the cost of \(\text{one}~\text{bundle}\).
Big Picture
What this problem is really about
The total is built from four equal bundles, so four should be the common factor that sits outside the group. Divide each term of the total by four to recover the two contributions belonging to one bundle. This factored form makes the group count and the per-bundle cost visible at the same time.
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