SOLUTION: Write as an equation: Alice, Barbara, and Carol are sisters. Alice is 3 years younger than Barbara, and Barbara is 5 years younger than Carol. Together the sisters are 68 years old

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Question 1126636: Write as an equation: Alice, Barbara, and Carol are sisters. Alice is 3 years younger than Barbara, and Barbara is 5 years younger than Carol. Together the sisters are 68 years old. How old is Barbara?

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Alice=x
Barbara=x+3
Carol=x+8
Their sum is 68
x+x+3+x+8=68
3x+11=68
3x=57
x=19
Barbara is 22 (the others are 19 and 27)