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Line passing through 2 points
Basic Accuracy: 35.19% Submissions: 441 Points: 1

Given two points P(a, b) and Q(c, d) in the coordinate plane, find the equation of the line passing through both the points.

Example 1:

Input: P = (3, 2)
Q = (2, 6)
Output: 4x+1y=14
Explaination: Using the formula to get
line equation from two points we can
get it.

Example 2:

Input: P = (3, 2)
Q = (5, 7)
Output: 5x-2y=11
Explaination: If we use the formula to
get line equation from two points we
get this equation.

You do not need to read input or print anything. Your task is to complete the function getLine() which takes the values a, b, c and d as input parameters and returns a string which represents the equation.

Expected Time Complexity: O(1)
Expected Auxiliary Space: O(1)

Constraints:
1 ≤ a, b, c, d ≤ 105

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