Equations
Fold
Math OP
Unfold
Linear algebra
Unfold
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 60÷（90+x） = 0.618:1 .
Question type: Equation
Solution:Original question:
| 60 | ÷ | ( | 90 | + | x | ) | = | 309 500 | ÷ | 1 |
| Multiply both sides of the equation by: | ( | 90 | + | x | ) |
| 60 | = | 309 500 | ÷ | 1 | × | ( | 90 | + | x | ) |
| 60 | = | 309 500 | ÷ | 1 | × | 90 | + | 309 500 | ÷ | 1 | × | x |
| 60 | = | 2781 50 | + | 309 500 | x |
Transposition :
| - | 309 500 | x | = | 2781 50 | − | 60 |
Combine the items on the right of the equation:
| - | 309 500 | x | = | - | 219 50 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
219 50 | = | 309 500 | 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 :
309 500 | x | = | 219 50 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 219 50 | ÷ | 309 500 |
| = | 219 50 | × | 500 309 |
| = | 73 | × | 10 103 |
We obtained :
| x | = | 730 103 |
Convert the result to decimal form :
| x | = | 7.087379 |