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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×(1＋28)×(1＋40)×1.31 = 0.38 .
Question type: Equation
Solution:Original question:
| x | ( | 1 | + | 28 | ) | ( | 1 | + | 40 | ) | × | 131 100 | = | 19 50 |
| Left side of the equation = | x | × | 1 | ( | 1 | + | 40 | ) | × | 131 100 | + | x | × | 28 | ( | 1 | + | 40 | ) | × | 131 100 |
| = | x | × | 131 100 | ( | 1 | + | 40 | ) | + | x | × | 917 25 | ( | 1 | + | 40 | ) |
| = | x | × | 131 100 | × | 1 | + | x | × | 131 100 | × | 40 | + | x | × | 917 25 | ( | 1 | + | 40 | ) |
| = | x | × | 131 100 | + | x | × | 262 5 | + | x | × | 917 25 | ( | 1 | + | 40 | ) |
| = | 5371 100 | x | + | x | × | 917 25 | ( | 1 | + | 40 | ) |
| = | 5371 100 | x | + | x | × | 917 25 | × | 1 | + | x | × | 917 25 | × | 40 |
| = | 5371 100 | x | + | x | × | 917 25 | + | x | × | 7336 5 |
| = | 155759 100 | x |
155759 100 | x | = | 19 50 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 19 50 | ÷ | 155759 100 |
| = | 19 50 | × | 100 155759 |
| = | 19 | × | 2 155759 |
We obtained :
| x | = | 38 155759 |
Convert the result to decimal form :
| x | = | 0.000244 |