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    Work: Find the solution of equation 3x-2*3 = 6 .
    Question type: Equation
    Solution:Original question:

3

x

−

2

×

3

=

6

Left side of the equation =

3

x

−

6

    The equation is transformed into :

3

x

−

6

=

6

    Transposition :

3

x

=

6

+

6

    Combine the items on the right of the equation:

3

x

=

12

    The coefficient of the unknown number is reduced to 1 :

x

=

12

÷

3

=

12

×

1 3

=

4

×

1

    We obtained :

x

=

4

    This is the solution of the equation.

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