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    Work: Find the solution of equation X+X*9% = 218 .
    Question type: Equation
    Solution:Original question:

X

+

X

×

9 100

=

218

Left side of the equation =

109 100

X

    The equation is transformed into :

109 100

X

=

218

    The coefficient of the unknown number is reduced to 1 :

X

=

218

÷

109 100

=

218

×

100 109

    We obtained :

X

=

21800 109

    This is the solution of the equation.

    By reducing fraction, we can get:

X

=

200

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