SOLUTION: Bob paid 3 less than Tim for his lunch at a local pizza parlor. Together they spent $7.80. How much did Bob spend for his lunch?

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Question 287206: Bob paid 3 less than Tim for his lunch at a local pizza parlor. Together they spent $7.80. How much did Bob spend for his lunch?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
b=t-3
b+t=7.8
b-t=-3
2b=4.80
b=2.40
t=5.40