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diff --git a/1938/CH6/EX6.9/6_9.sce b/1938/CH6/EX6.9/6_9.sce
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+clc,clear
+printf('Example 6.9\n\n')
+
+//Line AB for Altermnator 1, and AC for alternator 2.AF is at frequency x measured from A where total load is 3000 kW
+BO=2000,AO=5//AF=x
+DC=2000,AD=3,//AF=x
+
+//using similarity of triangles AEF and ABO
+EF_by_AF=(BO/AO)// because (EF/BO)=(AF/AO)
+//using similarity of triangles AFG and ADC
+FG_by_AF=(DC/AD) //because (FG/DC)=(AF/AD)
+
+EF_by_x=EF_by_AF   //which implies EF=400*x
+FG_by_x=FG_by_AF   //which implies FG=666.67*x
+
+EF_plus_FG=3000  //total load at the frequency at P is 3000 kW
+x= EF_plus_FG/(EF_by_x + FG_by_x)
+EF=(BO/AO)*x
+FG=(DC/AD)*x  
+
+printf('Loads shared by machine 1 and 2 are %.0f kW and %.0f kW respectively',EF,FG)