Question

(x-9)/(9-x) = -1

Can someone show me the steps to getting the answer, -1, to this one?

Answer 1

(x-9) /
(9 - x)
after this you try to make the upper side and the lower side equal so as to cancel each other. You do this by taking -1 common from the lower side. This gives us
(x-9) / -(x-9) { see -(x-9) can be written as -x + 9 which is again 9-x}
= -1

Answer 2

Thanks, sometimes I can't see the forest because of the trees. Very nice explanation!