Question

check which of the following are solution of the equation x-2y=4 and which are not
(i) (4,-2)


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Answer 1

Answer:

x-2y=4

putting x as 4 and y as -2

4-2(-2)=4

4+4≠4

8≠4

Therefore this solution is not the solution of this equation

Answer 2

Answer:

x-2y =4

Put x= 4 and y= -2

=4-2×(-2)

=4+4

=8.

So, (4,-2) is not a solution for this answer.