7x 5 9 The solution is Type the value of x What is the val
     7x - 5 = 9 The solution is  (Type the value of x.)  What is the value of n when 8n - 24 = 5n + 6? The value of n is  Your friend does 25 push-ups and 55 sit-ups  total number of push-ups and sit-ups. Use the  shows the total number of push-ups and sit-ups  Which expression is equivalent to n(25 + 55) by   
  
  Solution
12) 7x-5=9
7x =9+5
7x=14
x=2,
13) 8n -24=5n+6
8n - 5n = 6+24
3n = 30
n=10

