Youths who were offered a chance at social activism turned out in droves at Milbrook High School yesterday afternoon. A poster in the hall had advertised simply, "Get involved! You can change lives!" This raised students’ curiosity, and many attended a meeting that introduced a neighborhood tutoring program. More than fifty students signed up to tutor children at nearby elementary schools.

imma have to go   the third option

sorry if i am wrong hope this

if i am right plz give me brainliest

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

answer; /// i believe the correct answer is (oasis)