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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 45（3x-6）+25（3x-8） = 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:
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 45（3x-6）+25（3x-8） = 0 .
Question type: Equation
Solution:Original question:
| 45 | ( | 3 | x | − | 6 | ) | + | 25 | ( | 3 | x | − | 8 | ) | = | 0 |
| Left side of the equation = | 45 | × | 3 | x | − | 45 | × | 6 | + | 25 | ( | 3 | x | − | 8 | ) |
| = | 135 | x | − | 270 | + | 25 | ( | 3 | x | − | 8 | ) |
| = | 135 | x | − | 270 | + | 25 | × | 3 | x | − | 25 | × | 8 |
| = | 135 | x | − | 270 | + | 75 | x | − | 200 |
| = | 210 | x | − | 470 |
| 210 | x | − | 470 | = | 0 |
Transposition :
| 210 | x | = | 0 | + | 470 |
Combine the items on the right of the equation:
| 210 | x | = | 470 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 470 | ÷ | 210 |
| = | 470 | × | 1 210 |
| = | 47 | × | 1 21 |
We obtained :
| x | = | 47 21 |
Convert the result to decimal form :
| x | = | 2.238095 |