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    Work: Find the solution of equation M*30*36%*70% = 40000+M*30*6% .
    Question type: Equation
    Solution:Original question:

M

×

30

×

36 100

×

70 100

=

40000

+

M

×

30

×

6 100

Left side of the equation =

M

×

189 25

    The equation is transformed into :

189 25

M

=

40000

+

M

×

30

×

6 100

Right side of the equation =

40000

+

M

×

9 5

    The equation is transformed into :

189 25

M

=

40000

+

9 5

M

    Transposition :

189 25

M

−

9 5

M

=

40000

    Combine the items on the left of the equation:

144 25

M

=

40000

    The coefficient of the unknown number is reduced to 1 :

M

=

40000

÷

144 25

=

40000

×

25 144

=

2500

×

25 9

    We obtained :

M

=

62500 9

    This is the solution of the equation.

    Convert the result to decimal form :

M

=

6944.444444

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