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Solve for p in the literal equation 7p + 9r = 9.

Solve for p in the literal equation 7p + 9r = 9.
asked 149k views
3 votes
Solve for p in the literal equation 7p + 9r = 9.

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User Omnigazer
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7.4k points

1 Answer

3 votes

It is given 7p+9r =9

Rearranging the equation


\begin{gathered} Subtract\text{ 9r from both sides} \\ 7p=9-9r \\ 7p=9(1-r)\text{ (took common factor 9 outside)} \\ \text{Divide both sides by 7} \\ p=(9)/(7)(1-r) \end{gathered}

So p =9(1-r)/7

answered
User Suprabhat Biswal
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