Please help me, if you know

A person's family history tells a lot about a persons health. Because a lot of diseases are genetic, it was common for a child to develop a health disorder that their parent or grandparent also has or went through. Another large part of a person's health includes their mental health. Their social history affects a their mental health because it leaves them alone with their thoughts with no one to talk to. This can lead to depression, which impacts a person's physical health as well.

Hope this helps!

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 think the answer would d