Answer:
x = 28
Step-by-step explanation:
There's a square at the angle and that little square means that the angle is a right angle, also known as 90 degrees. So the equation plus 33 equals 90, so just write that out and solve for x:
2x + 1 + 33 = 90
2x + 34 = 90
subtract 34 from both sides
2x = 56
divide by 2
x = 28
