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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*3+X*1.1*3+X*1.2*3+X*1.3*3+X*1.4*3 = 450000 .
Question type: Equation
Solution:Original question:
| X | × | 1 | × | 3 | + | X | × | 11 10 | × | 3 | + | X | × | 6 5 | × | 3 | + | X | × | 13 10 | × | 3 | = | 450000 |
| Left side of the equation = | X | × | 3 | + | X | × | 33 10 | + | X | × | 18 5 | + | X | × | 39 10 | + | X | × | 21 5 |
| = | 18 | X |
| 18 | X | = | 450000 |
The coefficient of the unknown number is reduced to 1 :
| X | = | 450000 | ÷ | 18 |
| = | 450000 | × | 1 18 |
| = | 25000 | × | 1 |
We obtained :
| X | = | 25000 |