Răspuns:
3(3x-y)=2(4x+3y)
9x-3y=8x+6y
9x-8x= 3y+6y
x=9y
3×(3x-y)=2×(4x+3y)
9x-3y=8x+6y |+3y-6x
3x=9y|÷3
x=3y
x/y=3