In what region of antebellum america would a scene like this most likely have been found? a. the west b. the north c. the south d. the great plains

 B)the North

Explanation: This image shows new technology and transportation methods (the telegraph, the locomotive, and the steamboat) which were characteristic of the North in the years leading up to the Civil War. The Northern states were the epicenter of America's "industrial revolution" of the early 1800's. The South remained primarily agricultural during this era; and the locomotive and telegraph would have a significant impact on the West and the Great Plains after the Civil War.

8 - (2a + 7) = a + 40     distribute/multiply - into (2a + 7)

8 - 2a - 7 = a + 40

1 - 2a = a + 40       add 2a on both sides

1 = 3a + 40         subtract 40 on both sides

-39 = 3a       divide 3 on both sides

-13 = a

[proof]

8 - (2a + 7) = a + 40

8 - (2(-13) + 7) = -13 + 40

8 - (-26 + 7) = 27

8 - (-19) = 27

8 + 19 = 27

27 = 27