1. -2(y - 3) - 2 = -2y + 6 - 2 = -2y + 4 ≠ 3y + 2 нет
2. (2020 - 2019 - 1)(y - 3) - 2 =0*(y-3) -2 = 0 - 2 = -2 = -2 да
3. (3x - 4x + x)(y - 3) = 0(y - 3) = 0 ≠ xy - 3x нет
4. 3(x + 2) - 2 = 3x + 6 - 2 = 3x + 4 ≠ 3x + 2 нет
ответ 2
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1. -2(y - 3) - 2 = -2y + 6 - 2 = -2y + 4 ≠ 3y + 2 нет
2. (2020 - 2019 - 1)(y - 3) - 2 =0*(y-3) -2 = 0 - 2 = -2 = -2 да
3. (3x - 4x + x)(y - 3) = 0(y - 3) = 0 ≠ xy - 3x нет
4. 3(x + 2) - 2 = 3x + 6 - 2 = 3x + 4 ≠ 3x + 2 нет
ответ 2