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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 (41.6+y)÷2+y = 18.2 .
Question type: Equation
Solution:Original question:
| ( | 208 5 | + | y | ) | ÷ | 2 | + | y | = | 91 5 |
| Left side of the equation = | 208 5 | × | 1 2 | + | y | × | 1 2 | + | y |
| = | 104 5 | + | y | × | 1 2 | + | y |
| = | 104 5 | + | 3 2 | y |
104 5 | + | 3 2 | y | = | 91 5 |
Transposition :
3 2 | y | = | 91 5 | − | 104 5 |
Combine the items on the right of the equation:
3 2 | y | = | - | 13 5 |
The coefficient of the unknown number is reduced to 1 :
| y | = | - | 13 5 | ÷ | 3 2 |
| = | - | 13 5 | × | 2 3 |
We obtained :
| y | = | - | 26 15 |
Convert the result to decimal form :
| y | = | - 1.733333 |