Pls help due in 20 mins Is there still a large indigenous population found in Spain?

I dont know what that means so if you could define or answer it thank you​

yes, catalans.

Explanation:

Catalans live in Catalonia in north-east Spain and in the Balearic Islands, Valencians south of Catalonia in Valencia, Galicians in Galicia in the north-west and Basques in the region on either side of the western Pyrenees, the majority in Spain.

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