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mrs_skeptik [129]
3 years ago
7

Need help with question 20

Mathematics
1 answer:
tigry1 [53]3 years ago
5 0
I would start by dividing by all the multipliers of the parentheses.
\frac{PV}{nt} = r_{1} +r_{2}
Then, I would subtract the unwanted variable from the sum.
\frac{PV}{nt} -r_{2} = r_{1}
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