# One-third

A one-third of unknown number is equal to five times as great as the difference of the same unknown number and number 28.
Determine the unknown number.

Result

x =  30

#### Solution:

x/3=5(x-28)

14x = 420

x = 30

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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