Question

|2x - y|, when x = 3 and y = 10

Explanation:

Step1: Substitute x and y values

Substitute $x=3$, $y=10$ into $|2x-y|$:
$|2\times3 - 10|$

Step2: Calculate inside the absolute value

Compute the expression inside the absolute value:
$|6 - 10| = |-4|$

Step3: Evaluate absolute value

Find the absolute value of $-4$:
$|-4| = 4$

Answer:

4