Question

find the value of C the linear equation 2 X + C Y is equal to 8 has equal value of x + Y as its solution​

Answer 1

Answer with Explanation:

According to the problem given,

2x + cy = 8 ..... ( 1 )

And

x = y .......... (2)

Put y = x in equation ( 1 ) we get,

2x + cx = 8

Take x common

x ( 2 + c ) = 8

x = 8 / ( 2 + c )

But denominator should not be zero.

2 + c not equals to zero.

c is not equal to -2.

And c = 0 , 2 and 6 satisfies the condition.

2x + cy = 8

has equal values of x and y.