The expression that is equivalent to 15x+3 will be 3(5x + 1)
- For the first expression, 15(1x + 1), this will be equal to 15x + 15 when the bracket is opened.
- For the second expression 3(5x + 1), this will be equal to 15x + 3
- For the third expression 5(3x + 1), this will be equal to 15x + 5.
- For the fourth expression 2(15x + 3), this will be equal to 30x + 6.
Based on the information above, we can infer that the expression that is equivalent to 15x+3 will be 3(5x + 1).
In conclusion, the correct option is B.
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