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    Work: Find the solution of equation 1200000+500*x = 800*x .
    Question type: Equation
    Solution:Original question:

1200000

+

500

x

=

800

x

    Transposition :

500

x

−

800

x

=

-

1200000

    Combine the items on the left of the equation:

-

300

x

=

-

1200000

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

1200000

=

300

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 :

300

x

=

1200000

    The coefficient of the unknown number is reduced to 1 :

x

=

1200000

÷

300

=

1200000

×

1 300

=

4000

×

1

    We obtained :

x

=

4000

    This is the solution of the equation.

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