Question

Nine fever than half a number is five more than four times the number

Answer 1

9-1a/2 = 5+4a
-5         -5

4-1a/2 = 4a
  +1a/2   +1a/2

4 = 9a/2
*2   *2

8 = 9a
/9   /9

8/9 = a

HOPE THIS HELPS!!!