Question

27X – 72Y = 11
-36X + 18Y = -2

Como resuelvo eso? ​

Answer 1

27X – 72Y = 11

-36X + 18Y = -2             //4

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27X – 72Y = 11

-144X + 72Y = -8

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-117X = 3

X = -3/117

X = -1/39

-36(-1/39) + 18Y = -2

36/39 + 2 = -18Y

12/13 + 2 = -18Y

38/13 = -18Y

Y = -38/234

Y = -19/117

Answer 2

Explicación paso a paso:

27x - 72y = 11

-36x + 18y = -2

27x - 72y = 11 -36x + 18y = -2

27x - 72y -36x+ 28y= 8

-9x - 44y= 8

-9 - 44 + 8 = xy

-27 = xy

xy= -27