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Use the function p=5m+12 to find the value of p when m=3

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Finding a value using an equation

We want to find p when m = 3 using

p = 5m + 12

In order to do that we just replace m by 3:

p = 5m + 12

p = 5 · 3 + 12

p = 15 + 12

p = 27

Answer: p = 27

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