Question 655307
Hello, 
Let's have e represent erasers and p for pencils. We can set up 2 equations:
6e + 7p = 100
e + p = 16  rewritten as: e=16-p
Substitution:
6(16-p)+7p=100
Expand:
96-6p+7p=100
Combine and subtract 96 to get:
p=4
e=12
Make sense?
RJ
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