Answer: x = 14 degrees
Step-by-step explanation:
All angles in a rectangle are right angles. That means we can make an equation of 3x + 2x + 20 + 90 = 180
( 180 because half of a rectangle)
To solve:
Combine like terms -
5x + 110 = 180
Subtract -
5x = 70
Divide -
x = 14 degrees