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русскийInstructions:
Solve a set of two equations with two unknowns and find out values of unknown variables x and y.
Example
| -2 . x - 1 . y | = | -1 |
| 1 . x + 2 . y | = | -1 |
| = | ||
| = | ||
| = | ||
| x | = | |
| y | = | |
| Correctness test | ||
| -2 . - 1 . | = | -1 |
| 1 . + 2 . | = | -1 |
Solution
| -2 . x - 1 . y | = | -1 |
| 1 . x + 2 . y | = | -1 |
| x | = | 1 |
| y | = | -1 |