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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 （3.42+x）/（34.2+x） = 0.2 .
Question type: Equation
Solution:Original question:
| ( | 171 50 | + | x | ) | ÷ | ( | 171 5 | + | x | ) | = | 1 5 |
| Multiply both sides of the equation by: | ( | 171 5 | + | x | ) |
| ( | 171 50 | + | x | ) | = | 1 5 | ( | 171 5 | + | x | ) |
171 50 | + | x | = | 1 5 | ( | 171 5 | + | x | ) |
171 50 | + | x | = | 1 5 | × | 171 5 | + | 1 5 | x |
171 50 | + | x | = | 171 25 | + | 1 5 | x |
Transposition :
| x | − | 1 5 | x | = | 171 25 | − | 171 50 |
Combine the items on the left of the equation:
4 5 | x | = | 171 25 | − | 171 50 |
Combine the items on the right of the equation:
4 5 | x | = | 171 50 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 171 50 | ÷ | 4 5 |
| = | 171 50 | × | 5 4 |
| = | 171 10 | × | 1 4 |
We obtained :
| x | = | 171 40 |
Convert the result to decimal form :
| x | = | 4.275 |