Answer:
x=12 Hope this helps!!!
Explanation:
Remember a straight line equals 180 and when you have the box the angle is 90 degrees. Try solving the equation 5x-22+4x+4+90=180.
5x-22+4x+4+90=180 (combine like terms)
9x+72=180 (subtract 72 from both sides)
9x=108 (divide 9 on both sides)
x=12