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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-0.2X-0.05X-3 = 20.7+0.2*20.7 .
Question type: Equation
Solution:Original question:
| X | − | 1 5 | X | − | 1 20 | X | − | 3 | = | 207 10 | + | 1 5 | × | 207 10 |
| Left side of the equation = | 3 4 | X | − | 3 |
3 4 | X | − | 3 | = | 207 10 | + | 1 5 | × | 207 10 |
| Right side of the equation = | 207 10 | + | 207 50 |
| = | 621 25 |
3 4 | X | − | 3 | = | 621 25 |
Transposition :
3 4 | X | = | 621 25 | + | 3 |
Combine the items on the right of the equation:
3 4 | X | = | 696 25 |
The coefficient of the unknown number is reduced to 1 :
| X | = | 696 25 | ÷ | 3 4 |
| = | 696 25 | × | 4 3 |
| = | 232 25 | × | 4 |
We obtained :
| X | = | 928 25 |
Convert the result to decimal form :
| X | = | 37.12 |