A + 3 square = 8 squares
A + B = 7 squares
B + C = A + 8 squares
- A = _____ squares
- B = _____ squares
- C = _____ squares
A + 3 square = 8 squares --- (1)
A + B = 7 squares --- (2)
B + C = A + 8 squares --- (3)
(a)
From (1)
A + 3 square = 8 squares
A = 8 squares - 3 square
A = 5 squares
(b)
Substitute A = 5 squares into (2).
A + B = 7 squares
5 squares + B = 7 squares
B = 7 squares - 5 squares
B = 2 squares
(c)
Substitute A = 5 squares and B = 2 squares into (3).
B + C = A + 8 squares
2 squares + C = 5 squares + 8 squares
2 squares + C = 13 squares
C = 13 squares - 2 squares
C = 11 squares
Answer(s): (a) 5; (b) 2; (c) 11