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    Work: Find the solution of equation x-219.12-（x-219.12-5000）*3% = 4600 .
    Question type: Equation
    Solution:Original question:

x

−

5478 25

−

(

x

−

5478 25

−

5000

)

×

3 100

=

4600

    Remove the bracket on the left of the equation:

Left side of the equation =

x

−

5478 25

−

x

×

3 100

+

5478 25

×

3 100

+

5000

×

3 100

=

x

−

5478 25

−

x

×

3 100

+

8217 1250

+

150

=

97 100

x

−

78183 1250

    The equation is transformed into :

97 100

x

−

78183 1250

=

4600

    Transposition :

97 100

x

=

4600

+

78183 1250

    Combine the items on the right of the equation:

97 100

x

=

5828183 1250

    The coefficient of the unknown number is reduced to 1 :

x

=

5828183 1250

÷

97 100

=

5828183 1250

×

100 97

=

5828183 25

×

2 97

    We obtained :

x

=

11656366 2425

    This is the solution of the equation.

    Convert the result to decimal form :

x

=

4806.748866

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