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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 （x-20.9）*1.5 = 38.8-x .
Question type: Equation
Solution:Original question:
| ( | x | − | 209 10 | ) | × | 3 2 | = | 194 5 | − | x |
| Left side of the equation = | x | × | 3 2 | − | 209 10 | × | 3 2 |
| = | x | × | 3 2 | − | 627 20 |
3 2 | x | − | 627 20 | = | 194 5 | − | x |
Transposition :
3 2 | x | + | x | = | 194 5 | + | 627 20 |
Combine the items on the left of the equation:
5 2 | x | = | 194 5 | + | 627 20 |
Combine the items on the right of the equation:
5 2 | x | = | 1403 20 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 1403 20 | ÷ | 5 2 |
| = | 1403 20 | × | 2 5 |
| = | 1403 10 | × | 1 5 |
We obtained :
| x | = | 1403 50 |
Convert the result to decimal form :
| x | = | 28.06 |