Which ordered pair is a solution to this equation?
-5x - 3y=25
substitute and see which one of them solves the equation.
for example (-6,0) means you substitute x = -6 and y=0 in the equation
LHS = -5(-6) - 3(0) = 30 which is not equal to the RHS (25).
so A is not the solution. try the rest and see which one solves it.