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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 40*0.9x+15*0.1X = 14838*0.40 .
Question type: Equation
Solution:Original question:
| 40 | × | 9 10 | x | + | 15 | × | 1 10 | x | = | 14838 | × | 2 5 |
| Left side of the equation = | 36 | x | + | 3 2 | x |
| = | 75 2 | x |
75 2 | x | = | 14838 | × | 2 5 |
| Right side of the equation = | 29676 5 |
75 2 | x | = | 29676 5 |
The coefficient of the unknown number is reduced to 1 :
| x | = | 29676 5 | ÷ | 75 2 |
| = | 29676 5 | × | 2 75 |
| = | 9892 5 | × | 2 25 |
We obtained :
| x | = | 19784 125 |
Convert the result to decimal form :
| x | = | 158.272 |