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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 （119-x）/193 = 0.40 .
Question type: Equation
Solution:Original question:
| ( | 119 | − | x | ) | ÷ | 193 | = | 2 5 |
| Left side of the equation = | 119 | × | 1 193 | − | x | × | 1 193 |
| = | 119 193 | − | x | × | 1 193 |
119 193 | − | 1 193 | x | = | 2 5 |
Transposition :
| - | 1 193 | x | = | 2 5 | − | 119 193 |
Combine the items on the right of the equation:
| - | 1 193 | x | = | - | 209 965 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
209 965 | = | 1 193 | 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 :
1 193 | x | = | 209 965 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 209 965 | ÷ | 1 193 |
| = | 209 965 | × | 193 |
We obtained :
| x | = | 40337 965 |
By reducing fraction, we can get:
| x | = | 209 5 |
Convert the result to decimal form :
| x | = | 41.8 |