Word Problems - Animals

Rules:
1. leave one variable by itself
2. switch it into the other problem what you had left
3. solve


d=15-c

2d+4c=70

^ put 15-c where the d is


Come visit the tutorial:
http://www.syvum.com/cgi/online/serve.cgi/kwps1/ksmat2b.html?question_hide



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