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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 20-3x = 5 .
Question type: Equation
Solution:Original question:
| 20 | - | 3 | x | = | 5 |
Transposition :
| - | 3 | x | = | 5 | - | 20 |
Combine the items on the right of the equation:
| - | 3 | x | = | - | 15 |
Multiply both sides of the equation by -1 :
| 3 | x | = | 15 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 15 | ÷ | 3 |
| = | 15 | × | 1 3 |
| = | 5 | × | 1 |
Get the solution of the equation :
| x | = | 5 |