👤

Stiind ca 3x-y \2x+y=5/4 aflati x/y

Răspuns :

3X-Y)/(2X+Y) = 5/4
4(3X-Y) = 5(2X+Y)
12X-4Y = 10X+5Y
12X-10X = 5Y+4Y
2X = 9Y
X/Y = 9/2