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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 40x+0.7×7.99 = 40.7×13.78 .
Question type: Equation
Solution:Original question:
| 40 | x | + | 7 10 | × | 799 100 | = | 407 10 | × | 689 50 |
| Left side of the equation = | 40 | x | + | 5593 1000 |
| 40 | x | + | 5593 1000 | = | 407 10 | × | 689 50 |
| Right side of the equation = | 280423 500 |
| 40 | x | + | 5593 1000 | = | 280423 500 |
Transposition :
| 40 | x | = | 280423 500 | − | 5593 1000 |
Combine the items on the right of the equation:
| 40 | x | = | 555253 1000 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 555253 1000 | ÷ | 40 |
| = | 555253 1000 | × | 1 40 |
We obtained :
| x | = | 555253 40000 |
Convert the result to decimal form :
| x | = | 13.881325 |