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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 828+x = （200+x）×3 .
Question type: Equation
Solution:Original question:
Remove the bracket on the right of the equation:
The equation is transformed into :
Transposition :
Combine the items on the left of the equation:
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 828+x = （200+x）×3 .
Question type: Equation
Solution:Original question:
| 828 | + | x | = | ( | 200 | + | x | ) | × | 3 |
| Right side of the equation = | 200 | × | 3 | + | x | × | 3 |
| = | 600 | + | x | × | 3 |
| 828 | + | x | = | 600 | + | 3 | x |
Transposition :
| x | − | 3 | x | = | 600 | − | 828 |
Combine the items on the left of the equation:
| - | 2 | x | = | 600 | − | 828 |
Combine the items on the right of the equation:
| - | 2 | x | = | - | 228 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
| 228 | = | 2 | 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 :
| 2 | x | = | 228 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 228 | ÷ | 2 |
| = | 228 | × | 1 2 |
| = | 114 | × | 1 |
We obtained :
| x | = | 114 |