Point I is on line segment
H
J
‾
HJ
. Given
I
J
=
3
x
+
3
,
IJ=3x+3,
H
I
=
3
x
−
1
,
HI=3x−1, and
H
J
=
3
x
+
8
,
HJ=3x+8, determine the numerical length of
H
J
‾
.
HJ
.