5 Levels of Ecological Organization from the most specific to the most general (broad).

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

make   gliitsh plesea   !

i know can you plzz me with this question im sorry i didt answer your question i just need hel.