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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 （39-30）/（40-30） = （X-0.092)/(0.0825-0.092) .
Question type: Equation
Solution:Original question:
| ( | 39 | − | 30 | ) | ÷ | ( | 40 | − | 30 | ) | = | ( | X | − | 23 250 | ) | ÷ | ( | 33 400 | − | 23 250 | ) |
| Multiply both sides of the equation by: | ( | 40 | − | 30 | ) | , | ( | 33 400 | − | 23 250 | ) |
| ( | 39 | − | 30 | ) | ( | 33 400 | − | 23 250 | ) | = | ( | X | − | 23 250 | ) | ( | 40 | − | 30 | ) |
| 39 | ( | 33 400 | − | 23 250 | ) | − | 30 | ( | 33 400 | − | 23 250 | ) | = | ( | X | − | 23 250 | ) | ( | 40 | − | 30 | ) |
| 39 | ( | 33 400 | − | 23 250 | ) | − | 30 | ( | 33 400 | − | 23 250 | ) | = | X | ( | 40 | − | 30 | ) | − | 23 250 | ( | 40 | − | 30 | ) |
| 39 | × | 33 400 | − | 39 | × | 23 250 | − | 30 | ( | 33 400 | − | 23 250 | ) | = | X | ( | 40 | − | 30 | ) | − | 23 250 | ( | 40 | − | 30 | ) |
| 39 | × | 33 400 | − | 39 | × | 23 250 | − | 30 | ( | 33 400 | − | 23 250 | ) | = | X | × | 40 | − | X | × | 30 | − | 23 250 | ( | 40 | − | 30 | ) |
1287 400 | − | 897 250 | − | 30 | ( | 33 400 | − | 23 250 | ) | = | X | × | 40 | − | X | × | 30 | − | 23 250 | ( | 40 | − | 30 | ) |
| - | 741 2000 | − | 30 | ( | 33 400 | − | 23 250 | ) | = | 10 | X | − | 23 250 | ( | 40 | − | 30 | ) |
| - | 741 2000 | − | 30 | × | 33 400 | + | 30 | × | 23 250 | = | 10 | X | − | 23 250 | ( | 40 | − | 30 | ) |
| - | 741 2000 | − | 30 | × | 33 400 | + | 30 | × | 23 250 | = | 10 | X | − | 23 250 | × | 40 | + | 23 250 | × | 30 |
| - | 741 2000 | − | 99 40 | + | 69 25 | = | 10 | X | − | 92 25 | + | 69 25 |
| - | 171 2000 | = | 10 | X | − | 23 25 |
Transposition :
| - | 10 | X | = | - | 23 25 | + | 171 2000 |
Combine the items on the right of the equation:
| - | 10 | X | = | - | 1669 2000 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
1669 2000 | = | 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 :
| 10 | X | = | 1669 2000 |
The coefficient of the unknown number is reduced to 1 :
| X | = | 1669 2000 | ÷ | 10 |
| = | 1669 2000 | × | 1 10 |
We obtained :
| X | = | 1669 20000 |
Convert the result to decimal form :
| X | = | 0.08345 |