Let's say the number of miles Clara biked last week is x.
This week, Clara wants to bike 2*x - 20 miles.
Since she wants to bike 112 miles this week, we can write the equation 2*x - 20 = 112.
Adding 20 to both sides of the equation, we have 2*x = 132.
Dividing both sides of the equation by 2, we get x = 132/2 = 66 miles.
Therefore, Clara biked 66 miles last week. Answer: \boxed{66}.
Clara wants to bike 112 miles this week. That is 20 miles less than 2 times the number of miles she biked last week. How many miles did she bike last week?
46
66
132
264
1 answer