Pls help to solve, if possible pls provide a model. Thank you so much!
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Question
Answer
ChiefKiasu
B + C = A + 5.90 … (1)
A + C = B + 20.70 … (2)
(2) – (1):
A – B = B – A + 14.80
2A – 2B = 14.80
A – B = 7.40
So Adam has $7.40 # more than Bryan.
sushi88
Alternative Solution:
[———B————–][——–C———–]
[————– A—————–]<–5.90—>
A – B = C – 5.9
[—————A—————–][——–C———–]
[———B————–] <———20.70————>
A – B = 20.7 – C
To eliminate C, add the 2 equations,
2(A-B) = 14.80
A-B = 7.40
Hence Adam has $7.40 more than Bryan.