Question

1. solve for x

Explanation:

Step1: Recall sum of interior angles

The sum of interior angles of a quadrilateral is $360^{\circ}$.

Step2: Set up equation

$76 + 92+122 + x=360$.

Step3: Simplify left - hand side

$290 + x=360$.

Step4: Solve for x

$x = 360 - 290$.
$x = 70$.

Answer:

$70$