Question

решите систему уравнений

Answer 1

вот, решение во вложениях)))

Answer 2

54X108 + 12*(4X+Y)108 = 108108 + 9*(7Y-1)108

54X + 48X + 12Y = 108 + 63Y - 9

102X = - 12Y + 63Y + 99

X = (51Y + 99) 102

......................................

X+Y2 - 5Y-X6 + 3Y-15 = X

15*(X+Y)30  - 5*(5Y-X)30 + 6*(3Y-1)30 = 30X30

15X + 15Y - 25Y + 5X +18Y - 6 = 30X

8Y = 10X + 6

..............................

8Y = 10*(51Y + 99)102 + 6

8Y = 510Y + 990 102 + 6

816Y = 510Y + 990 + 612

306Y = 1602

Y = 5.235

.....................

X = (266.985 + 99)102 = 3.588

ответ: Х = 3.588  Y = 5.235