Question
6 B + 3 C = 30
7 B + 4 C = 37

Fill in the blanks.
  1. 1 B + 1 C = _____
  2. 1 B = _____
  3. 1 C = _____
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

6 B + 3 C = 30
7 B + 4 C = 37

Fill in the blanks.
  1. 1 B + 1 C = _____
  2. 1 B = _____
  3. 1 C = _____