A + 4 diamond = 10 diamonds
A + B = 9 diamonds
B + C = A + 2 diamonds
- A = _____ diamonds
- B = _____ diamonds
- C = _____ diamonds
A + 4 diamond = 10 diamonds --- (1)
A + B = 9 diamonds --- (2)
B + C = A + 2 diamonds --- (3)
(a)
From (1)
A + 4 diamond = 10 diamonds
A = 10 diamonds - 4 diamond
A = 6 diamonds
(b)
Substitute A = 6 diamonds into (2).
A + B = 9 diamonds
6 diamonds + B = 9 diamonds
B = 9 diamonds - 6 diamonds
B = 3 diamonds
(c)
Substitute A = 6 diamonds and B = 3 diamonds into (3).
B + C = A + 2 diamonds
3 diamonds + C = 6 diamonds + 2 diamonds
3 diamonds + C = 8 diamonds
C = 8 diamonds - 3 diamonds
C = 5 diamonds
Answer(s): (a) 6; (b) 3; (c) 5