Allie noticed that to get her test grade, she could take Valerie's grade, multiply it by 2 and subtract 15. If Valerie's test grade was x, how would you write Allie's test grade?

2x - 15

1 km 5 minutes

To write Allie's test grade, we can follow these steps:

1. Multiply Valerie's test grade, x, by 2: 2x.
2. Subtract 15 from the result of step 1: 2x - 15.

Therefore, Allie's test grade can be written as 2x - 15.

To write Allie's test grade given Valerie's test grade, we follow these steps:

1. Take Valerie's test grade (denoted as x).
2. Multiply Valerie's test grade by 2, which can be written as 2*x.
3. Subtract 15 from the doubled grade, which can be written as 2*x - 15.

Therefore, Allie's test grade can be written as 2x - 15.