Early in the War of 1812, the governor of the Michigan territory led an attack on Canada that resulted in a US victory on land.
the capture of Montreal.
the surrender of Detroit.
a US victory in the Battle of Lake Erie.

i believe the answer is c

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

continental currency was denominated in dollars from $​1⁄6 to $80, including many odd denominations in between.

it's a to start a war with the americans