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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 777.99*6%*(1-x)*2 = 70 .
Question type: Equation
Solution:Original question:
77799 100 | × | 6 100 | ( | 1 | − | x | ) | × | 2 | = | 70 |
| Left side of the equation = | 233397 2500 | ( | 1 | − | x | ) |
233397 2500 | ( | 1 | − | x | ) | = | 70 |
| Left side of the equation = | 233397 2500 | × | 1 | − | 233397 2500 | x |
| = | 233397 2500 | − | 233397 2500 | x |
233397 2500 | − | 233397 2500 | x | = | 70 |
Transposition :
| - | 233397 2500 | x | = | 70 | − | 233397 2500 |
Combine the items on the right of the equation:
| - | 233397 2500 | x | = | - | 58397 2500 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
58397 2500 | = | 233397 2500 | 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 :
233397 2500 | x | = | 58397 2500 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 58397 2500 | ÷ | 233397 2500 |
| = | 58397 2500 | × | 2500 233397 |
| = | 58397 | × | 1 233397 |
We obtained :
| x | = | 58397 233397 |
Convert the result to decimal form :
| x | = | 0.250205 |