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On line Solution of Monovariate Equation：
    Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
    It supports equations that contain mathematical functions.
    Current location：Equations > Monovariate Equation > The history of univariate equation calculation > Answer

    Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation 1+x% = 0.9{1+（x+15）%} .
    Question type: Equation
    Solution:Original question:
     1 + x =
9
10
(1 + ( x + 15) ×
1
100
)
    Remove the bracket on the right of the equation:
     Right side of the equation =
9
10
 × 1 +
9
10
( x + 15) ×
1
100
                                               =
9
10
 +
9
1000
( x + 15)
                                               =
9
10
 +
9
1000
 x +
9
1000
 × 15
                                               =
9
10
 +
9
1000
 x +
27
200
                                               =
207
200
 +
9
1000
 x
    The equation is transformed into :
     1 + x =
207
200
 +
9
1000
 x

    Transposition :
      x −
9
1000
 x =
207
200
 − 1

    Combine the items on the left of the equation:
     
991
1000
 x =
207
200
 − 1

    Combine the items on the right of the equation:
     
991
1000
 x =
7
200

    The coefficient of the unknown number is reduced to 1 :
      x =
7
200
 ÷
991
1000
        =
7
200
 ×
1000
991
        = 7 ×
5
991

    We obtained :
      x =
35
991
    This is the solution of the equation.

    Convert the result to decimal form :
      x = 0.035318



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