By 8000 bce, jericho had undergone spectacular development as its wealth grew. which argument appears most valid for the fortification of jericho

The argument that appears most valid for the fortification of Jericho as it had undergone spectacular development as its wealth grew is that it provided protection from marauding nomads.

This argument appears to be the most valid because Jericho’s spectacular development may attract marauders that will try to attack the city because of its accumulated wealth.

i dont know but i need points

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