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vfiekz
[6]
3 years ago
12
If 2s +10r = 2(2s-5r) = 42, then what is the value of r?
Mathematics
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answer:
Lesechka
[4]
3 years ago
5
0
R=7/5
You can list two equations:
2s+10r=42 and 4s-10r=42.
Then try to delete S, you will get r
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