+2551 \(-10x-6y=18\)
\(-8x+2y=-8\)
The following message has been changed in order to prevent any cheaters (or because google has good algorithms) on our school club test.
Change one thing and the equation will be true.
What is the change?
+2551 Plug (3, 8) in.
\(-10(3)?6(8)=18\)
\(-30?48=18\)
\(?=+\)
Of course, that's just directly checking guest's answer.
But we plug (3, 8) in to solve, it might take some guessing and checking/
Did you know that you gave away the answer by giving the "values of x, y", instead of something like :"the values of x and y are 2 real positive integers"? !!
+2551 It would be insanely hard to get the answer, didn't want to make it too hard...
