The value of x in mx + ny = c; nx - ny = c + 1 is

x = (2c + 1) / (m + n)

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x = m + n

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x = (m + n) / (c + 1)

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x = 2c + 1

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Solution

The correct option is A
x = (2c + 1) / (m + n)

mx + ny = c.............(1)

nx - ny = c + 1.........(2) add the eqs (1) & (2).

(m + n) x = 2c + 1

x = (2c + 1) / (m + n)

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