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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.
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 （x*1.13-9.99）÷9.99 = -10% .
Question type: Equation
Solution:Original question:
| ( | x | × | 113 100 | − | 999 100 | ) | ÷ | 999 100 | = | - | 10 100 |
| Left side of the equation = | x | × | 113 100 | × | 100 999 | − | 999 100 | × | 100 999 |
| = | x | × | 113 999 | − | 1 |
113 999 | x | − | 1 | = | - | 10 100 |
Transposition :
113 999 | x | = | - | 10 100 | + | 1 |
Combine the items on the right of the equation:
113 999 | x | = | 9 10 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 9 10 | ÷ | 113 999 |
| = | 9 10 | × | 999 113 |
We obtained :
| x | = | 8991 1130 |
Convert the result to decimal form :
| x | = | 7.956637 |