How did the expansion of islam into northern ethiopia in the eighth century affect the city of aksum?
a. it brought a huge influx of trade to the city.
b. it resolved religious conflicts that had weakened the region for four centuries.
c. it sparked a civil war and many political assassinations.
d. it weakened aksum's commercial prosperity.

a peace conference held after the surrender of japan

an international conference held near the end of world war ii

a meeting of the victorious nations after the defeat of germany

a summit meeting between the united states and the soviet union

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