In what way can american voters bring about changes in their government

American voters can bring about changes in their government by making sure they vote during elections and also contact elected officials on laws and policy they will like to be changed, they can also engage in peaceful protest and petition elected officials. when the elected officials  propose or implement policies not good enough  

Explanation:

An American  voter is someone who votes or has the right to vote in an American election

whats youre

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