Why did hannibal place libyan troops in spain and spanish troops in libya

answer:

i am not 100% sure but, i think it is because to make them fight more aggressive.

explanation:

because if their in their home country, they will not fight and run away, but if they are at other country, they will fight hard to go back to their country.

first paragraph (and busy all the night ,with a silence deep and white )

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