A + 5 square = 8 squares
A + B = 7 squares
B + C = A + 3 squares
- A = _____ squares
- B = _____ squares
- C = _____ squares
A + 5 square = 8 squares --- (1)
A + B = 7 squares --- (2)
B + C = A + 3 squares --- (3)
(a)
From (1)
A + 5 square = 8 squares
A = 8 squares - 5 square
A = 3 squares
(b)
Substitute A = 3 squares into (2).
A + B = 7 squares
3 squares + B = 7 squares
B = 7 squares - 3 squares
B = 4 squares
(c)
Substitute A = 3 squares and B = 4 squares into (3).
B + C = A + 3 squares
4 squares + C = 3 squares + 3 squares
4 squares + C = 6 squares
C = 6 squares - 4 squares
C = 2 squares
Answer(s): (a) 3; (b) 4; (c) 2
