Question

3p-1/5_p/7=3

please give me fast answer​

Answer 1

$\frac{3p - 1}{5} - \frac{p}{7} = 3 \\ \\ \frac{7(3p - 1) - 5p}{35} = 3 \\ \\ 21p - 7 - 5p = 3 \times 35 \\ \\ 16p - 7 = 105 \\ \\ 16p = 105 + 7 = 112 \\ \\ p = \frac{112}{16} \\ \\ p = 7$

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