To solve the equation \(-15y + 3 = -7\):
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Subtract 3 from both sides: \[ -15y + 3 - 3 = -7 - 3 \ -15y = -10 \]
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Divide both sides by -15: \[ y = \frac{-10}{-15} \ y = \frac{10}{15} = \frac{2}{3} \]
None of the options provided (50, -20, 15, 20) match the result \(\frac{2}{3}\). There may have been a mistake in the choices you presented. Double-check the options for any typos or errors. If you meant to provide a different equation or choices, please clarify!