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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÷（8.39+x） = 0.3 .
Question type: Equation
Solution:Original question:
| x | ÷ | ( | 839 100 | + | x | ) | = | 3 10 |
| Multiply both sides of the equation by: | ( | 839 100 | + | x | ) |
| x | = | 3 10 | ( | 839 100 | + | x | ) |
| x | = | 3 10 | × | 839 100 | + | 3 10 | x |
| x | = | 2517 1000 | + | 3 10 | x |
Transposition :
| x | − | 3 10 | x | = | 2517 1000 |
Combine the items on the left of the equation:
7 10 | x | = | 2517 1000 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 2517 1000 | ÷ | 7 10 |
| = | 2517 1000 | × | 10 7 |
| = | 2517 100 | × | 1 7 |
We obtained :
| x | = | 2517 700 |
Convert the result to decimal form :
| x | = | 3.595714 |