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    Work: Find the solution of equation X-2%X = 1640 .
    Question type: Equation
    Solution:Original question:

X

−

2 100

X

=

1640

Left side of the equation =

49 50

X

    The equation is transformed into :

49 50

X

=

1640

    The coefficient of the unknown number is reduced to 1 :

X

=

1640

÷

49 50

=

1640

×

50 49

    We obtained :

X

=

82000 49

    This is the solution of the equation.

    Convert the result to decimal form :

X

=

1673.469388

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