Answer:
x = 20
Step-by-step explanation:
To find the midpoint of a segment, add the lengths and divide by 2
If y is the midpoint the 2 parts have to be equal.
XY = YZ
2(3x+1) = 5x+22
Distribute
6x+2 = 5x+22
Subtract 5x from each side
6x-5x +2 = 5x-5x+22
x+2 =22
Subtract 2 from each side
x+2-2=22-2
x=20
