Compose a hypothesis for each of the following questions. Will planting seeds
too shallow or too
deep prevent their
growth?

No

Explanation:

it doesn't prevents their growth only if they get the necessary source

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.

: -)