The last two then i submit

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.

: -)

that is true   : ) hope this you

they dont have any evidence

answerblank(1) unconditioned stimulusblank(2); unconditioned response