The graph of the linear equation 5x + 3y = 10 is a line that meets the x-axis at the point:
Taking option D
Substituting co-ordinates of the point (a,−a) in the equation x+y=0
We get a + (−a) = a − a = 0
LHS = RHS
Hence, (a,−a) satisfies x+y=0.
Hence, option D is correct.