The standard form: Ax + By = C.
We have:

<h3>Answer: x - 4y = 8</h3>
2(x + 6) is what you’re looking for. Have a good day!
Answer:
D)18,400
Step-by-step explanation:
If you change all the variables to the given valuables, the new equation would be (-3 + -9) - (-2 - 2 x -9)
Solve what's in the parenthesis first. -3 + -9 is -12. -2 x -9 is -18, and -2 - -18 is 16. Then you do -12 - 16 and you get -28
-28 is the answer :D
631 divided by 4 is 15.75 rounded to 16. To check you multiply 4 by 15.75 to get 631. Please brainly if ti helps! :D