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[ 1/1 Equation]
    Work: Find the solution of equation 5x+2 = 7 .
    Question type: Equation
    Solution:Original question:

5

x

+

2

=

7

    Transposition :

5

x

=

7

−

2

    Combine the items on the right of the equation:

5

x

=

5

    The coefficient of the unknown number is reduced to 1 :

x

=

5

÷

5

=

5

×

1 5

=

1

×

1

    We obtained :

x

=

1

    This is the solution of the equation.

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