Equations
Fold
Math OP
Unfold
Linear algebra
Unfold
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 28.8*0.7+40.8x = 74.9 .
Question type: Equation
Solution:Original question:
The equation is transformed into :
Transposition :
Combine the items on the right of the equation:
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
By reducing fraction, we can get:
Convert the result to decimal form :
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation 28.8*0.7+40.8x = 74.9 .
Question type: Equation
Solution:Original question:
144 5 | × | 7 10 | + | 204 5 | x | = | 749 10 |
| Left side of the equation = | 504 25 | + | 204 5 | x |
504 25 | + | 204 5 | x | = | 749 10 |
Transposition :
204 5 | x | = | 749 10 | − | 504 25 |
Combine the items on the right of the equation:
204 5 | x | = | 2737 50 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 2737 50 | ÷ | 204 5 |
| = | 2737 50 | × | 5 204 |
| = | 2737 10 | × | 1 204 |
We obtained :
| x | = | 2737 2040 |
By reducing fraction, we can get:
| x | = | 161 120 |
Convert the result to decimal form :
| x | = | 1.341667 |