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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 35.31 = x-（x*0.3） .
Question type: Equation
Solution:Original question:
3531 100 | = | x | − | ( | x | × | 3 10 | ) |
| Right side of the equation = | x | − | x | × | 3 10 |
| = | 7 10 | x |
3531 100 | = | 7 10 | x |
Transposition :
| - | 7 10 | x | = | - | 3531 100 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
3531 100 | = | 7 10 | x |
If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
7 10 | x | = | 3531 100 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 3531 100 | ÷ | 7 10 |
| = | 3531 100 | × | 10 7 |
| = | 3531 10 | × | 1 7 |
We obtained :
| x | = | 3531 70 |
Convert the result to decimal form :
| x | = | 50.442857 |