# Question 7d037

Dec 20, 2016

The outside temperature is 75.6°

#### Explanation:

Before you write an equation, you must define the variable. It is usually what you are asked to find.

Let the outside temperature be $x$.
Then decide what operation(s) to do

The dry ice temperature is lower than the outside temperature by 184.9° This can be shown by a subtraction.

$x - 184.9 = - 109.3 \text{ } \leftarrow$ now solve for $x$

$x - 184.9 + 184.9 = - 109.3 + 184.9 \text{ }$add 184.9 to each side

x = 75.6°#