Question
3 E + 2 F = 21
5 E + 2 F = 27

Fill in the blanks.
  1. 2 E = _____
  2. 1 E =_____
  3. 1 F = _____
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 E + 2 F = 21
5 E + 2 F = 27

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