What are the two unknown angle measurements that form the 90 degree angle?

(x + 4) degree = ____ degree, (3x + 2) degree = ____

The two unknown angle measurements that form the 90 degree angle are:

(x + 4) degrees = 90 degrees
(3x + 2) degrees = 90 degrees

Wrong

Apologies for the mistake.

To form a 90 degree angle, the two unknown angle measurements must add up to 90 degrees.

(x + 4) degrees + (3x + 2) degrees = 90 degrees