3. Every action on digital media is

C- Recorded and saved.

Every action on digital media is recorded and saved.

Explanation:

It is correct according to your question. Your question was incomplete, I completed it with the 4 options and gave you the right answer.

i think option 3. would be ur best bet and u need to write it urself

have a good day

simplify brackets

8 - 2a - 7 = a + 40

simplify 8 - 2a - 7 to -2a + 1

-2a + 1 = a + 40

add 2a to both sides

1 = a + 40 + 2a

simplify a + 40 + 2a to 3a + 40

1 = 3a + 40

subtract 40 from both sides

1 - 40 = 3a

simplify 1 - 40 o -39

-39 = 3a

divide both sides by 3

-39/3 = a

simplify 39/3 to 13

-13 = a

switch sides

a = -13