Question

Which equation can be used to solve for x in the following diagram?

Answer 1

Answer: A

Explanation:

Both angles are makes a right angle which adds up to 90 degrees so they both have to add up to 90 degrees.

Answer 2

x + (4x-85) = 90

Explanation:

The two angles are complementary which means they add to 90 degrees

x + (4x-85) = 90