Answer:
GH= 23
Step-by-step explanation:
Since G is the midpoint we know that FG=GH
So, set both equations equal to each other
[tex]4x+3=7x-12\\3=3x-12\\15=3x\\x=5[/tex]
Now that we know what x equals, plug it into the equation given for GH
[tex]7(5)-12=23[/tex]
