Question

Ex 30 punctul a vă rog frumos!!!Urgent!!!!!

Answer 1

Răspuns:

(x+1)/3 - (y+2)/4 = 3(x-y)/6

4(x+1)/12 - 3(y+2)/12 = 6(x-y)/12

4(x+1) -3(y+2) = 6(x-y)

4x + 4 -3y -6 = 6x -6y

4x -6x = 3y -6y + 6 -4

-2x = -3y + 2

x = (2 -3y)/2

(x-3)/4 - (y+3)/3 = 2y-6

3(x-3) -4(y+3) = 12(2y-6)

3x -9 -4y -12 = 24y -72

3x -28y = -51

3(2 -3y)/2 -28y = -51

3(2 -3y) -56y = -102

6 -9y - 56y = -102

-65y = -108

y = 108/65

x = (2 -3y)/2

x = (2 -324/65)/2

x = 1 - 162/65

x = -97/65