Question

Which equation does this story match: The temperature is -7. Since midnight the temperature tripled and then rose 5 degrees. What was the temperature at midnight?

5x - 7=3

7=3(5+ x)

3x + 5 = -7

13 (x+ 7) = 5

Answer 1

The equation that matches the given story is 3x + 5 = -7. Solving this equation will give us the temperature at midnight.

Step-by-step explanation:

The equation that matches the given story is 3x + 5 = -7.

Let's break down the story:

• The initial temperature is -7.
• The temperature tripled, which means it was multiplied by 3. So, we can write this as 3x.
• The temperature then rose 5 degrees, so we add 5 to the tripled temperature.

Putting it all together, we can write the equation as 3x + 5 = -7. Solving this equation will give us the temperature at midnight.