ANSWER:
The temperature in Small ville, six hours ago was 13 degrees.
SOLUTION:
Given, current temperature in Smallville is 20 degrees.
And this is 6 degrees less than twice the temperature that it was six hours ago.
We need to find what was the temperature six hours ago.
Let the temperature six hours ago be x.
Then, 2x - 6 = 20 [ according to the given information
2x = 20 + 6
2x = 26
x = [tex]\frac{26}{2}[/tex]
x = 13 degrees.
Temperature six hours ago was 13 degrees
Hence, the temperature in smallville , six hours ago was 13 degrees.
