SOLUTION: Four friends go to dinner the bill is 61 dollars including the tip what is the equation

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Question 1132591: Four friends go to dinner the bill is 61 dollars including the tip what is the equation
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Some data omitted. Tax Rate? TIP percentage? How each friend's order price or cost were related?

If tax rate is 8%, TIP rate taken as 15%, and if each friend in party eats exactly the same thing of cost x, then:

4%2Ax%2B0.08x%2B0.15%2A4x=61