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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 (7281.55-a)÷1.08÷1.05 = 0 .
Question type: Equation
Solution:Original question:
| ( | 145631 20 | − | a | ) | ÷ | 27 25 | ÷ | 21 20 | = | 0 |
| Left side of the equation = | ( | 145631 20 | − | a | ) | × | 500 567 |
| ( | 145631 20 | − | a | ) | × | 500 567 | = | 0 |
| Left side of the equation = | 145631 20 | × | 500 567 | − | a | × | 500 567 |
| = | 3640775 567 | − | a | × | 500 567 |
3640775 567 | − | 500 567 | a | = | 0 |
Transposition :
| - | 500 567 | a | = | 0 | − | 3640775 567 |
Combine the items on the right of the equation:
| - | 500 567 | a | = | - | 3640775 567 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
3640775 567 | = | 500 567 | a |
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 :
500 567 | a | = | 3640775 567 |
The coefficient of the unknown number is reduced to 1 :
| a | = | 3640775 567 | ÷ | 500 567 |
| = | 3640775 567 | × | 567 500 |
| = | 145631 | × | 1 20 |
We obtained :
| a | = | 145631 20 |
Convert the result to decimal form :
| a | = | 7281.55 |