To show that \( y \cdot 3x \) is equivalent to \( 3xy \), we can use the Commutative Property of multiplication:
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Start with the expression: \[ y \cdot 3x = y \cdot (3 \cdot x) \]
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Use the Commutative Property to rearrange the factors: \[ y \cdot (3 \cdot x) = 3 \cdot (y \cdot x) = 3xy \]
Thus, we conclude: \[ y \cdot 3x = 3xy \] This confirms that the two expressions are equivalent.