Which expression is equivalent to 6(3y - 2y + 7)?

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2 points
18y + 7
21y - 14y + 7
18y + 42
6y + 42

The expression 6(3y - 2y + 7) simplifies to 6(1y + 7), which further simplifies to 6y + 42. Therefore, the correct answer is 6y + 42.