To simplify the expression \(-5(7y + 3) - 2y\):
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Distribute \(-5\) to both terms inside the parentheses: \[-5 \cdot 7y - 5 \cdot 3 = -35y - 15\]
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Now, combine this with \(-2y\): \[-35y - 15 - 2y\]
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Combine like terms (\(-35y - 2y\)): \[-37y - 15\]
So, the simplest form of the expression is: \(-37y - 15\)