For this case, the first thing we must do is define a variable.
We have then:
x: temperature at the beginning of the day.
The algebraic expression that models the problem is given by:
[tex] x + 8 + 4 = 64 [/tex]
From here, we clear the value of x.
We have then:
[tex] x = 64-8-4 [/tex]
Therefore, the expression that models the temperature at the beginning of the day is:
[tex] 64-8-4 [/tex]
Answer:
[tex] 64-8-4 [/tex]
option A
