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11-03-2018
Mathematics

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What is the value of p if Rp - 6 = 2p + 20?

A. p = 14/R-2

B. p = 14/2-R

C. p = 26/R-2

D. p = 26/2-R

What is the value of p if Rp 6 2p 20 A p 14R2 B p 142R C p 26R2 D p 262R class=

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Аноним Аноним

11-03-2018

Rp - 6 = 2p + 20

[add 6 to both sides]
Rp - 6 + 6 = 2p + 20 + 6
Rp = 2p + 26

[-2p from both sides]
Rp -2p = 2p + 26 - 2p
Rp - 2p = 26

[Take p out as the common factor]
p(R-2) = 26

[Divide by R-2 on both sides]
p = 26/(R-2) [Answer C]

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