7 roses

Peter buys 7 roses. When he pay for it left him 4 euro. If he bought 5 roses left him 40 euros. How many euros had Peter before buying?

Result

x =  130 eur

Solution:


x = 5(x-4)/7+40

2x = 260

x = 130

Calculated by our simple equation calculator.


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To solve this example are needed these knowledge from mathematics:

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