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           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation (x+50%x)x90%-50 = 1000+x .
    Question type: Equation
    Solution:Original question:

(

x

+

50 100

x

)

x

×

90 100

−

50

=

1000

+

x

    Remove the bracket on the left of the equation:

Left side of the equation =

x

x

×

90 100

+

50 100

x

x

×

90 100

−

50

=

x

x

×

90 100

+

9 20

x

x

−

50

    The equation is transformed into :

x

x

×

90 100

+

9 20

x

x

−

50

=

1000

+

x

    The solution of the equation:
        x₁≈-27.520756 , keep 6 decimal places
        x₂≈28.261497 , keep 6 decimal places    
    There are 2 solution(s).

解程的详细方法请参阅：《方程的解法》

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