Question

rk.
$4x + \frac{4}{5}(10x - 5)$

Explanation:

Step1: Distribute the fraction

$\frac{4}{5}(10x - 5) = \frac{4}{5} \cdot 10x - \frac{4}{5} \cdot 5$

Step2: Simplify the distributed terms

$\frac{4}{5} \cdot 10x = 8x$, $\frac{4}{5} \cdot 5 = 4$

Step3: Combine like terms

$4x + 8x - 4 = 12x - 4$

Answer:

$12x - 4$