Allie's energetic Uncle Bob loves roller coasters, and he wants to ride them all! One day, Allie prints out a list of all the roller coasters in the United States. After reading it with Uncle Bob, they
discover he has already ridden 90 of the coasters. There are still 403 coasters left to ride.
Which equation can you use to find the total number of roller coasters c on Allie's list?
с
= 403
90
90C = 403
C - 90 = 403
C + 90 = 403
Solve this equation for c to find the number of roller coasters on Allie's list.
roller coasters
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