Running to escape danger is an action that requires the nervous system to coordinate the interaction of which two body systems?

a. digestive and endocrine
b. muscular and skeletal
c. reproductive and excretory
d. circulatory and digestive

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.

: -)

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