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    Work: Find the solution of equation 15x(40÷2-x) = 1560 .
    Question type: Equation
    Solution:Original question:

15

x

(

40

÷

2

−

x

)

=

1560

    Remove the bracket on the left of the equation:

Left side of the equation =

15

x

×

40

÷

2

−

15

x

x

=

300

x

−

15

x

x

    The equation is transformed into :

300

x

−

15

x

x

=

1560

    This equation has no real solution!

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