Here's how to convert -7 degrees Celsius to Fahrenheit:

Formula:

* °F = (°C * 9/5) + 32

Calculation:

1. Multiply Celsius by 9/5: -7 * (9/5) = -12.6

2. Add 32: -12.6 + 32 = 19.4

Answer: The melting point of bromine is 19.4 degrees Fahrenheit.