Seven times the age of son is equal to twice the age of father. If age of father is x years and that of son is y years then write the linear equation in x and y representing the given condition. *
x +y =7
7x +2y = 0
2x -7y =0
7y - 2x = 0
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3 option i.e 2x - 7y =0 is correct
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