# Unknown number

Samuel wrote unknown number. Then he had add 200000 to the number and the result multiply by three. When it calculated he was surprised, because the result would have received anyway, if write digit to the end of original number. Find unknown number.

Result

x =  85714

#### Solution:

3(x+200000)=10x+2

7x = 599998

x = 85714

Calculated by our simple equation calculator.

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#### To solve this example are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

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