Question
8 D + 2 E = 30
9 D + 3 E = 39

Fill in the blanks.
  1. 1 D = _____
  2. 1 E = _____
  3. 3 D + 2 E = _____



4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

(c)

Click button first when a symbol is required. X

8 D + 2 E = 30
9 D + 3 E = 39

Fill in the blanks.
  1. 1 D = _____
  2. 1 E = _____
  3. 3 D + 2 E = _____