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[ 1/1 Equation]
    Work: Find the solution of equation 3x+6 = 0 .
    Question type: Equation
    Solution:Original question:

3

x

+

6

=

0

    Transposition :

3

x

=

0

−

6

    Combine the items on the right of the equation:

3

x

=

-

6

    The coefficient of the unknown number is reduced to 1 :

x

=

-

6

÷

3

=

-

6

×

1 3

=

-

2

×

1

    We obtained :

x

=

-

2

    This is the solution of the equation.

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