Recently ranked one of the wealthiest men in the world, which texas businessman created a highly-successful computer company?
a. roy bedichek
b. walter cunningham
c. michael dell
d. horton foote

We can add 53.6 in both sides and we got:

And now we can divide both sides by 2 and we got:

Step-by-step explanation:

For this case we know the following info:

represent the coldest temperature in the Moon

represent the minimum temperature of Earth

And we know the following relation :"the coldest surface temperature on the Moon, $-280$°F, is $53.6$°F colder than twice the coldest surface temperature on Earth", so we can write this like that:

We can add 53.6 in both sides and we got:

And now we can divide both sides by 2 and we got: