Question

Rozwiąż układ równań:

x/2 + y/4 = 2x + 3y - 1/2

x(y-x) 0 - 6 = y(x-1) - x(x-2)

Answer 1

x/2 + y/4 = 2x + 3y - 1/2   *4

x(y-x) 0 - 6 = y(x-1) - x(x-2)

2x+ y= 8x + 12y - 2

xy- X2- 6= yx- y- x2+ 2x

2x+ y- 8x- 12y= -2

xy- x2- yx+ y+ x2+ 2x= 6

-6x- 11y= -2

y+ 2x= 6

y= 6- 2x

-6x - 11(6- 2x)= -2

y= 6- 2x

-6x - 66+ 22x= -2

y=6- 2x

16x= 64   /16

y=6- 2x

x= 4

y= 6- 2*4

x= 4

y= -2