SOLUTION: Find x,JM,MN,and JN if triangle JMN is an isosceles triangle with line JM congruent to line MN. JM=2X-5 MN=3x-9 JN=x-2 T.he book answer is x=4,JM=3,MN=3,JN=2 Please explain

Algebra ->  Triangles -> SOLUTION: Find x,JM,MN,and JN if triangle JMN is an isosceles triangle with line JM congruent to line MN. JM=2X-5 MN=3x-9 JN=x-2 T.he book answer is x=4,JM=3,MN=3,JN=2 Please explain      Log On


   

Question 167531This question is from textbook glencoe Mathmatics Geometry
: Find x,JM,MN,and JN if triangle JMN is an isosceles triangle with line JM congruent to line MN.
JM=2X-5
MN=3x-9
JN=x-2
T.he book answer is x=4,JM=3,MN=3,JN=2
Please explain how to work This question is from textbook glencoe Mathmatics Geometry

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
JM=MN
JM=2X-5
MN=3x-9
JN=x-2
Thus: 2x-5=3x-9
2x-3x=-9+5
-x=-4
x=4 answer.
2*4-5=8-5=3 for JM.
3*4-9=12-9=3 for MN.
4-2=2 for JN.