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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 [（6.9-x）-4.2]+1/6.9 = 1/2.43*0.4112 .
Question type: Equation
Solution:Original question:
| ( | ( | 69 10 | − | x | ) | − | 21 5 | ) | + | 1 | ÷ | 69 10 | = | 1 | ÷ | 243 100 | × | 257 625 |
| Left side of the equation = | ( | ( | 69 10 | − | x | ) | − | 21 5 | ) | + | 10 69 |
| ( | ( | 69 10 | − | x | ) | − | 21 5 | ) | + | 10 69 | = | 1 | ÷ | 243 100 | × | 257 625 |
| Left side of the equation = | ( | 69 10 | − | x | ) | − | 21 5 | + | 10 69 |
| = | ( | 69 10 | − | x | ) | − | 1399 345 |
| = | 69 10 | − | x | − | 1399 345 |
| = | 1963 690 | − | x |
1963 690 | − | x | = | 1 | ÷ | 243 100 | × | 257 625 |
| Right side of the equation = | 1028 6075 |
1963 690 | − | x | = | 1028 6075 |
Transposition :
| - | x | = | 1028 6075 | − | 1963 690 |
Combine the items on the right of the equation:
| - | x | = | - | 747727 279450 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
747727 279450 | = | 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 :
| x | = | 747727 279450 |
This is the solution of the equation.