For what value of c the linear equation 2x Cy 8 has equal values of x and y for its solutions?

For what value of c, the linear equation 2x + cy = 8 has equal values of x and y for its solution.

Given: y = x is a solution to the equation 2x + cy = 8

Put x = y

We have: 2y + cy = 8

Or, cy = 8 − 2y

c = `8/y - 2 = 8/x - 2`

Concept: Solution of a Linear Equation

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