Question

решите систему уравнений 3х-у=15,    х+6/2-у/3=6

Answer 1

X = 6 - 3 + Y3 = (9 - Y)3

3*(9-Y)3 - Y = 15

9-Y - Y = 15

-2Y = 6

Y = - 3

X = (9 +3)3 = 4