Match each term with its definition by writing the letter of the correct definition on the line after the word:

c

explanation:

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.

: -)

not sure if this what   you'r looking for would be percent composition

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.