The sum of 3.25 and twice a number is -7. The temperature of a liquid changes by -10.4°F initially. After adjustments, the temperature becomes 17.7°F, 1/3 of the initial temperature. What was the initial temperature of the liquid?
a) -40.5°F
b) -34.8°F
c) -31.2°F
d) -29.1°F