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    Work: Find the solution of equation 15x = 10－x .
    Question type: Equation
    Solution:Original question:

15

x

=

10

−

x

    Transposition :

15

x

+

x

=

10

    Combine the items on the left of the equation:

16

x

=

10

    The coefficient of the unknown number is reduced to 1 :

x

=

10

÷

16

=

10

×

1 16

=

5

×

1 8

    We obtained :

x

=

5 8

    This is the solution of the equation.

    Convert the result to decimal form :

x

=

0.625

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