x + 4 = -6 - -10, X - 400 = -600 - -200, 5 - X = -7 - 12, - 12 + X = 8 - 20, X - 12 = 6 - 18, 8 - X = 17 - -9, 1 + X = -19 - -20, -X - 5 =11 - -16, X - 4 = 2 - 6, 5 - X = 7 - -2, -12 + X = -8 - 4,

Математика - 6. Рівняння

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