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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 （18870－18680）/（x－4.76） = （19200－18870）/（4.87－x） .
Question type: Equation
Solution:Original question:
| ( | 18870 | − | 18680 | ) | ÷ | ( | x | − | 119 25 | ) | = | ( | 19200 | − | 18870 | ) | ÷ | ( | 487 100 | − | x | ) |
| Multiply both sides of the equation by: | ( | x | − | 119 25 | ) | , | ( | 487 100 | − | x | ) |
| ( | 18870 | − | 18680 | ) | ( | 487 100 | − | x | ) | = | ( | 19200 | − | 18870 | ) | ( | x | − | 119 25 | ) |
| 18870 | ( | 487 100 | − | x | ) | − | 18680 | ( | 487 100 | − | x | ) | = | ( | 19200 | − | 18870 | ) | ( | x | − | 119 25 | ) |
| 18870 | ( | 487 100 | − | x | ) | − | 18680 | ( | 487 100 | − | x | ) | = | 19200 | ( | x | − | 119 25 | ) | − | 18870 | ( | x | − | 119 25 | ) |
| 18870 | × | 487 100 | − | 18870 | x | − | 18680 | ( | 487 100 | − | x | ) | = | 19200 | ( | x | − | 119 25 | ) | − | 18870 | ( | x | − | 119 25 | ) |
| 18870 | × | 487 100 | − | 18870 | x | − | 18680 | ( | 487 100 | − | x | ) | = | 19200 | x | − | 19200 | × | 119 25 | − | 18870 | ( | x | − | 119 25 | ) |
918969 10 | − | 18870 | x | − | 18680 | ( | 487 100 | − | x | ) | = | 19200 | x | − | 91392 | − | 18870 | ( | x | − | 119 25 | ) |
918969 10 | − | 18870 | x | − | 18680 | × | 487 100 | + | 18680 | x | = | 19200 | x | − | 91392 | − | 18870 | ( | x | − | 119 25 | ) |
918969 10 | − | 18870 | x | − | 18680 | × | 487 100 | + | 18680 | x | = | 19200 | x | − | 91392 | − | 18870 | x | + | 18870 | × | 119 25 |
918969 10 | − | 18870 | x | − | 454858 5 | + | 18680 | x | = | 19200 | x | − | 91392 | − | 18870 | x | + | 449106 5 |
9253 10 | − | 190 | x | = | 330 | x | − | 7854 5 |
Transposition :
| - | 190 | x | − | 330 | x | = | - | 7854 5 | − | 9253 10 |
Combine the items on the left of the equation:
| - | 520 | x | = | - | 7854 5 | − | 9253 10 |
Combine the items on the right of the equation:
| - | 520 | x | = | - | 24961 10 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
24961 10 | = | 520 | 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 :
| 520 | x | = | 24961 10 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 24961 10 | ÷ | 520 |
| = | 24961 10 | × | 1 520 |
We obtained :
| x | = | 24961 5200 |
Convert the result to decimal form :
| x | = | 4.800192 |