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    Work: Find the solution of equation （x-6）＋（x－4） = x-1 .
    Question type: Equation
    Solution:Original question:

(

x

−

6

)

+

(

x

−

4

)

=

x

−

1

    Remove the bracket on the left of the equation:

Left side of the equation =

x

−

6

+

(

x

−

4

)

=

x

−

6

+

x

−

4

=

2

x

−

10

    The equation is transformed into :

2

x

−

10

=

x

−

1

    Transposition :

2

x

−

x

=

-

1

+

10

    i.e.

x

=

-

1

+

10

    Combine the items on the left of the equation:

x

=

-

1

+

10

    Combine the items on the right of the equation:

x

=

9

    This is the solution of the equation.
    This is the solution of the equation.

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