What contribution does von steuben make to the troops at valley forge

  He trained the troops and boost their morality.

Explanation:

  He was hired by George Washington to train the troops that later will become the Continental Army. He taught them the essentials of the military tactics and discipline.

  He was a Prussian officer who after being discharged for unknown reasons of the Prussian Army was hired by George Washington to train troops.

  I hope this answer helps you.

c.) the country needed a stronger central government.

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