Question
3 D + 4 E = 19
5 D + 4 E = 29

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

3 D + 4 E = 19
5 D + 4 E = 29

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