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diff --git a/911/CH2/EX2.7/ex_2_7.sce b/911/CH2/EX2.7/ex_2_7.sce
new file mode 100644
index 000000000..fbbbbc8f8
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+++ b/911/CH2/EX2.7/ex_2_7.sce
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+// example 2.7//
+clc
+//clears the screen//
+clear
+//clears all existing variables//
+a=8;
+//given numbers//
+b=185;
+c=b-a;
+d=dec2bin(c,12)
+disp(c,'subtraction of given numbers in decimal form = ')
+disp(d,'subtraction of given numbers in binary form = ')
+\ No newline at end of file