November 2021 0 5 Report
Решите систему уравнений : а) 2x/3 = x+y/2 - 5/2 , 2x + 3y/2 = 0; б) 3(x-y) - 2 (x+y) = 2x - 2y, x-y/3 - x+y/2 = x/6 +1; в) 1/x + 1/y = 10, 1/2x - 1/2y =1.
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