ADD Find the constant value in ax + by = c. as a question & solution in python

Task 1/Find the constant value in ax + by = c./Find the constant value in ax + by = c.md

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+# Find the constant value for a linear two variable equation i.e., ax + by = c.
+
+- a & b are given, you need to find the constant 'c' value, how you find it with two independent variables? And x,y can be integers, rational number, etc.
+- Let's take few Examples:
+<pre>
+  25x + 10y = c,
+  10x + 100y = c,
+  11x + 35y = c
+</pre>
+
+# Solution:
+
+- Extended Euclidean Algorithm is one of such algorithm which help to find solutions of such problems. How?
+- Extended Euclidean stated as: 
+<pre>
+  ax + by = gcd(a, b)
+</pre>
+- So, it becomes finding the gcd of two numbers and the problem solved.
+- Check the Solution.py file for the solution.

Task 1/Find the constant value in ax + by = c./Solution.py

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+# Here you will find the solution in python language
+
+# Given two numbers in the form of equation:
+
+# GCD function:
+def GCD(a, b):
+  if a == 0:
+    return b
+  return GCD(b, a%b)
+
+
+a,b = 5, 10
+# Call GCD 
+result = GCD(a, b)
+print(result)
+
+# result is constnat value.