$\"\"$ $\"\"$ $\"\"$

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The equation is $\"\"$ .

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Apply subtraction property of equality: Subtract 4p from each side.

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$\"\"$

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Rearrange the terms using commutative property of addition: $\"\"$ . $\"\"$

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$\"\"$ (Subtract: $\"\"$ )

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Apply addition property of equality: Add 15 to each side.

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$\"\"$

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$\"\"$ (Add: $\"\"$ )

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$\"\"$ \ \ $\"\"$

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Verify:

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To check the solution, substitute $\"\"$ in original equation.

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$\"\"$

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Subtract: $\"\"$ )

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Compare the values, the equation is true. $\"\"$

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The solution is $\"\"$ .

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