Question

4(3x - y) - 15x + 5y?

Explanation:

Step1: Expand the bracket

Using the distributive property \(a(b - c)=ab - ac\), we expand \(4(3x - y)\) to get \(12x - 4y\). So the expression becomes \(12x - 4y-15x + 5y\).

Step2: Combine like terms

For the \(x\)-terms: \(12x-15x=-3x\). For the \(y\)-terms: \(-4y + 5y=y\). Combining these results, we get \(-3x + y\).

Answer:

\(-3x + y\)