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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 23.2% = 105%+r2+105%*r2 .
Question type: Equation
Solution:Original question:
116 500 | = | 105 100 | + | r | × | 2 | + | 105 100 | r | × | 2 |
| Right side of the equation = | 105 100 | + | r | × | 2 | + | 21 10 | r |
| = | 105 100 | + | 41 10 | r |
116 500 | = | 105 100 | + | 41 10 | r |
Transposition :
| - | 41 10 | r | = | 105 100 | − | 116 500 |
Combine the items on the right of the equation:
| - | 41 10 | r | = | 409 500 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
| - | 409 500 | = | 41 10 | r |
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 :
41 10 | r | = | - | 409 500 |
The coefficient of the unknown number is reduced to 1 :
| r | = | - | 409 500 | ÷ | 41 10 |
| = | - | 409 500 | × | 10 41 |
| = | - | 409 50 | × | 1 41 |
We obtained :
| r | = | - | 409 2050 |
Convert the result to decimal form :
| r | = | - 0.199512 |