A + 4 circle = 7 circles
A + B = 8 circles
B + C = A + 10 circles
- A = _____ circles
- B = _____ circles
- C = _____ circles
A + 4 circle = 7 circles --- (1)
A + B = 8 circles --- (2)
B + C = A + 10 circles --- (3)
(a)
From (1)
A + 4 circle = 7 circles
A = 7 circles - 4 circle
A = 3 circles
(b)
Substitute A = 3 circles into (2).
A + B = 8 circles
3 circles + B = 8 circles
B = 8 circles - 3 circles
B = 5 circles
(c)
Substitute A = 3 circles and B = 5 circles into (3).
B + C = A + 10 circles
5 circles + C = 3 circles + 10 circles
5 circles + C = 13 circles
C = 13 circles - 5 circles
C = 8 circles
Answer(s): (a) 3; (b) 5; (c) 8