Answer:
![-280 = 2X-53.6](https://img.qammunity.org/2020/formulas/mathematics/high-school/9ascmses1l470fusye0uuhnbp0rp34n5oh.png)
We can add 53.6 in both sides and we got:
![-280 +53.6 = 2X](https://img.qammunity.org/2020/formulas/mathematics/high-school/pwcez5x4pwiglskol1db5qkunihsjl9tlu.png)
And now we can divide both sides by 2 and we got:
![X= (-226.4 F)/(2)= -113.2F](https://img.qammunity.org/2020/formulas/mathematics/high-school/sx38fip0of46ynxtiv3lxl9hzpkgayyus3.png)
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:
![-280 = 2X-53.6](https://img.qammunity.org/2020/formulas/mathematics/high-school/9ascmses1l470fusye0uuhnbp0rp34n5oh.png)
We can add 53.6 in both sides and we got:
![-280 +53.6 = 2X](https://img.qammunity.org/2020/formulas/mathematics/high-school/pwcez5x4pwiglskol1db5qkunihsjl9tlu.png)
And now we can divide both sides by 2 and we got:
![X= (-226.4 F)/(2)= -113.2F](https://img.qammunity.org/2020/formulas/mathematics/high-school/sx38fip0of46ynxtiv3lxl9hzpkgayyus3.png)