Respuesta :

9514 1404 393

Answer:

  i = 2

Step-by-step explanation:

The outside factor multiplies each term in parentheses.

  5(2i +4) -i = 38

  10i +20 -i = 38 . . . . eliminate parentheses

  9i +20 = 38 . . . . . . collect terms

  9i = 18 . . . . . . . . . . subtract 20

  i = 2 . . . . . . . . . . . . divide by 9