This is an image of two adjacent angles forming a linear pair. Since a linear pair of angles is supplementary, their sum is always 180°.

Given: $x^\circ + 70^\circ = 180^\circ$

Solving for $x$:

$x = 180^\circ - 70^\circ$

$x = 110^\circ$

Thus, $x = 110^\circ$.

Would you like a detailed explanation on linear pairs and supplementary angles?

Here are some related questions for further exploration:

1. What are complementary and supplementary angles?
2. How do you find missing angles in a triangle?
3. What is the sum of interior angles in a polygon?
4. How do vertical angles relate to each other?
5. How can you prove that a straight angle is always 180°?

Tip: A linear pair of angles always sums to 180°, which is a useful property in geometry!