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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 70*10000*(1+x) = 12*32500/9 .
Question type: Equation
Solution:Original question:
| 70 | × | 10000 | ( | 1 | + | x | ) | = | 12 | × | 32500 | ÷ | 9 |
| Left side of the equation = | 700000 | ( | 1 | + | x | ) |
| 700000 | ( | 1 | + | x | ) | = | 12 | × | 32500 | ÷ | 9 |
| Left side of the equation = | 700000 | × | 1 | + | 700000 | x |
| = | 700000 | + | 700000 | x |
| 700000 | + | 700000 | x | = | 12 | × | 32500 | ÷ | 9 |
| Right side of the equation = | 130000 3 |
| 700000 | + | 700000 | x | = | 130000 3 |
Transposition :
| 700000 | x | = | 130000 3 | − | 700000 |
Combine the items on the right of the equation:
| 700000 | x | = | - | 1970000 3 |
The coefficient of the unknown number is reduced to 1 :
| x | = | - | 1970000 3 | ÷ | 700000 |
| = | - | 1970000 3 | × | 1 700000 |
| = | - | 197 3 | × | 1 70 |
We obtained :
| x | = | - | 197 210 |
Convert the result to decimal form :
| x | = | - 0.938095 |