The temperature at the end of the day was 64 degrees. The temperature had increased twice during the day, once by 8 degrees and another time by 4 degrees. Which expression shows what the temperature was at the start of the day

Answer 1

Let's call the temperature at the start of the day x degrees.

After the first increase, the temperature becomes x+8 degrees.
After the second increase, the temperature becomes x+8+4 degrees.

Given that the temperature at the end of the day was 64 degrees, we can set up the equation:

x + 8 + 4 = 64

Combining like terms:

x + 12 = 64

Subtracting 12 from both sides:

x = 52

Therefore, the expression that shows what the temperature was at the start of the day is x = 52 degrees.