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    Work: Find the solution of equation (169834-x)/169834 = 0.1172 .
    Question type: Equation
    Solution:Original question:

(

169834

−

x

)

÷

169834

=

293 2500

    Remove the bracket on the left of the equation:

Left side of the equation =

169834

×

1 169834

−

x

×

1 169834

=

1733 1733

−

x

×

1 169834

    The equation is transformed into :

1733 1733

−

1 169834

x

=

293 2500

    Transposition :

-

1 169834

x

=

293 2500

−

1733 1733

    Combine the items on the right of the equation:

-

1 169834

x

=

-

2207 2500

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :

2207 2500

=

1 169834

x

    If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :

1 169834

x

=

2207 2500

    The coefficient of the unknown number is reduced to 1 :

x

=

2207 2500

÷

1 169834

=

2207 2500

×

169834

=

2207 1250

×

84917

    We obtained :

x

=

187411819 1250

    This is the solution of the equation.

    Convert the result to decimal form :

x

=

149929.4552

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