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    Work: Find the solution of equation 0.85*40X+0.15*12X = 17000*0.53 .
    Question type: Equation
    Solution:Original question:

17 20

×

40

X

+

3 20

×

12

X

=

17000

×

53 100

Left side of the equation =

34

X

+

9 5

X

=

179 5

X

    The equation is transformed into :

179 5

X

=

17000

×

53 100

Right side of the equation =

9010

    The equation is transformed into :

179 5

X

=

9010

    The coefficient of the unknown number is reduced to 1 :

X

=

9010

÷

179 5

=

9010

×

5 179

    We obtained :

X

=

45050 179

    This is the solution of the equation.

    Convert the result to decimal form :

X

=

251.675978

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