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+// Problem 3.8,Page no.58
+
+clc;clear;
+close;
+
+//R_a+R_c=25 //KN //R_a,R_b are reactions at supports A and C respectively
+L_ab=2 //m
+L_bc=3 //m
+
+//Calculation
+
+//From F.B.D,we get
+//dell_L_AB=(R_a*L_AB)*(A*E)**-1 //Elongation of portion AB
+//dell_L_BC=(R_c*L_BC)*(A*E)**-1 //Compression of portion BC
+
+//After simplifying above equations we get,
+//R_a=(1.5)*R_c //KN
+//R_a+R_c=25 //KN
+//Solving the above simultaneous equations using matrix method
+A=[1 -1.5;1 1]  //Here the coefficients of the first equations of unknowns are setup
+B=[0;25] //Here the RHS of both equations are setup
+C=A**-1*B
+
+//print C[0] //Prints the first element in the vector C
+//print C[1] //Prints the second element in the vector C
+
+//Result
+printf("The reaction at support A is %.2f kN",C(1))
+printf("\n The reaction at support C is %.2f kN",C(2))