Решите систему урввнения {5x-y=8 2x+3y=-7 - вопрос №804372658237 от lesyastruklol 19.08.2022 11:52

Question

Математика: Решите систему урввнения {5x-y=8 2x+3y=-7

lesyastruklol · Answer

5x - y = 8        |3          15x - 3y = 242x + 3y = - 7   |             2x + 3y = - 7                                                                          17x = 17                                          x = 15 * 1 - y = 85 - y = 8y = 5 - 8y = - 3ответ: (1 ; - 3)...