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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 3.3/(75+x)x = 0.825 .
Question type: Equation
Solution:Original question:
33 10 | ÷ | ( | 75 | + | x | ) | × | x | = | 33 40 |
| Multiply both sides of the equation by: | ( | 75 | + | x | ) |
33 10 | x | = | 33 40 | ( | 75 | + | x | ) |
33 10 | x | = | 33 40 | × | 75 | + | 33 40 | x |
33 10 | x | = | 495 8 | + | 33 40 | x |
Transposition :
33 10 | x | − | 33 40 | x | = | 495 8 |
Combine the items on the left of the equation:
99 40 | x | = | 495 8 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 495 8 | ÷ | 99 40 |
| = | 495 8 | × | 40 99 |
| = | 5 | × | 5 |
We obtained :
| x | = | 25 |