Question

given (lparallel mparallel n), find the value of (x).

Explanation:

Step1: Use property of parallel lines

When $l\parallel m\parallel n$, the corresponding angles are equal. So, $8x + 11=131$.

Step2: Solve the equation for $x$

Subtract 11 from both sides: $8x=131 - 11$.
$8x = 120$.
Then divide both sides by 8: $x=\frac{120}{8}$.
$x = 15$.

Answer:

$15$