Form 2 - Simple Polynomials (2)?
2015-10-08 7:43 am
There are 10a + 4b + 13c people at a stadium. 5a + 3b are men, 4a + 3b + 5c are women, and the rest are children. How many children are there?
回答 (1)
2015-10-08 8:05 am
✔ 最佳答案
children +5a + 3b +4a + 3b + 5c =10a + 4b + 13c ==>children =a-2b+8c
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https://hk.answers.yahoo.com/question/index?qid=20151007234328AAg0cP9