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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 (x+1)-6(x+1)-4 = 0 .
Question type: Equation
Solution:Original question:
Remove the bracket on the left of the equation:
The equation is transformed into :
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.
Convert the result to decimal form :
☆1 equations
[ 1/1 Equation]
Work: Find the solution of equation (x+1)-6(x+1)-4 = 0 .
Question type: Equation
Solution:Original question:
| ( | x | + | 1 | ) | − | 6 | ( | x | + | 1 | ) | − | 4 | = | 0 |
| Left side of the equation = | x | + | 1 | − | 6 | ( | x | + | 1 | ) | − | 4 |
| = | x | − | 3 | − | 6 | ( | x | + | 1 | ) |
| = | x | − | 3 | − | 6 | x | − | 6 | × | 1 |
| = | x | − | 3 | − | 6 | x | − | 6 |
| = | - | 5 | x | − | 9 |
| - | 5 | x | − | 9 | = | 0 |
Transposition :
| - | 5 | x | = | 0 | + | 9 |
Combine the items on the right of the equation:
| - | 5 | x | = | 9 |
By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
| - | 9 | = | 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 :
| 5 | x | = | - | 9 |
The coefficient of the unknown number is reduced to 1 :
| x | = | - | 9 | ÷ | 5 |
| = | - | 9 | × | 1 5 |
We obtained :
| x | = | - | 9 5 |
Convert the result to decimal form :
| x | = | - 1.8 |