Write and solve an algebraic equation to find the answer.
From midnight to 6:00 am, the temperature rose 8°C. At 6:00 am, the temperature was
−20°C. What was the temperature at midnight?
−20°C - 8°C = x
x = −28°C
Let's assume the temperature at midnight as "x" degree Celsius.
From midnight to 6:00 am, the temperature rose 8°C. Therefore, the temperature at 6:00 am will be x + 8°C.
Given that the temperature at 6:00 am was -20°C, we can set up the equation:
x + 8 = -20
To solve for x, we can subtract 8 from both sides of the equation:
x = -20 - 8
Simplifying this equation gives us:
x = -28
Therefore, the temperature at midnight was -28°C.