February 2023 1 4 Report
1. Розв'яжіть x - y = 1, x-2y = 4; 2x +5у = -4, 7x-2y = 25. графічно систему рівнянь: [3x + y = 7, x + y = 3. 2x-3y=-10, 6x - y = 2; 2. Знайдіть a i b, якщо пара (10; -2) є розв'язком системи рівнянь ax-5y=17, 3x + by = 9.​
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