Question 379775
  <pre><font size = 3 color = "indigo"><b>
Hi,
Simplifying
 (2n+5) - (3n+7) + (4n-9)
1*(2n+5) -1*(3n+7) + 1*(4n-9) Removing parenthesis
  2n + 5  -3n - 7  +  4n - 9  Combining like terms
  3n - 11