Question

find the value of x.

Explanation:

Step1: Note angle - sum property

The sum of angles around a point is 360°.

Step2: Set up equation

$128 + 90+2x=360$.

Step3: Simplify equation

$218 + 2x=360$.

Step4: Solve for x

$2x=360 - 218=142$, so $x = 71$.

Answer:

71