find relation between p and q if x=3,y=1 is asolution of a pair of lines x-4y+p=0 and 2x+y-q-2=0

The given equations are :x-4y+p = 0     .....12x+y-q-2 = 0   .........2Since, 3, 1 is the solution of 1, then it must satisfy it.    x-4y+p = 03 - 41 + p = 03 - 4 + p = 0-1 + p = 0p = 1     Since, 3, 1 is the solution of 2, then it must satisfy it.    2x+y-q-2 = 023 + 1 - q - 2 = 06 + 1 - q - 2 = 05 - q = 0q = 5    

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