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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
| -18 . x + 18 . y | = | 54 |
| -18 . x - 36 . y | = | -54 |
| = | ||
| = | ||
| = | ||
| x | = | |
| y | = | |
| Correctness test | ||
| -18 . + 18 . | = | 54 |
| -18 . - 36 . | = | -54 |
Solution
| -18 . x + 18 . y | = | 54 |
| -18 . x - 36 . y | = | -54 |
| x | = | -1 |
| y | = | 2 |