8. Реши уравнения.
3.X - 7 800 = 1200
(k+2 958) : 57 = 139
(x +47 972): 75 · 600 = 512 400
(z - 30 985): 15 = 12 000 - 9731
3.X - 7 800 = 1200
(k+2 958) : 57 = 139
(x +47 972): 75 · 600 = 512 400
(z - 30 985): 15 = 12 000 - 9731
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