Washing machine

The price of the washing machine decreased by 21% and then by 55 € due to small sales. After two price decreases, cost € 343.
How much did it initially cost?

Correct answer:

x =  503.8 Eur

Step-by-step explanation:

q=110021=0.79 x=q343+55=0.79343+55=503.8 Eur

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