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It supports mathematical functions (including trigonometric functions).
Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation 1600 = 0.2x+400 .
Question type: Equation
Solution:Original question:
Transposition :
Combine the items on the right of the equation:
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
The coefficient of the unknown number is reduced to 1 :
We obtained :
This is the solution of the equation.
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation 1600 = 0.2x+400 .
Question type: Equation
Solution:Original question:
| 1600 | = | 1 5 | x | + | 400 |
Transposition :
| - | 1 5 | x | = | 400 | − | 1600 |
Combine the items on the right of the equation:
| - | 1 5 | x | = | - | 1200 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
| 1200 | = | 1 5 | x |
If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
1 5 | x | = | 1200 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 1200 | ÷ | 1 5 |
| = | 1200 | × | 5 |
We obtained :
| x | = | 6000 |