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[ 1/1 Equation]
    Work: Find the solution of equation y×0.72 = 1 .
    Question type: Equation
    Solution:Original question:

y

×

18 25

=

1

    The coefficient of the unknown number is reduced to 1 :

y

=

1

÷

18 25

=

1

×

25 18

    We obtained :

y

=

25 18

    This is the solution of the equation.

    Convert the result to decimal form :

y

=

1.388889

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