algebra 1
posted by AP .
Marcos drove twice as far as Candice. Together, they drove 66 miles. Which equation can be used to find the number of miles Candice drove?
A) 3x = 66
B) 2x+1/2x=66
C) 3x = 66 + x
D) 3x=66x

x = miles Candice drove
2x = miles Marcus drove
x + 2x = 66 = miles driven together
3x = 66