Question

\(\frac{4x}{6y}=\frac{2x+8}{3y+11}\).tìm x/y

Answer 1

\(\frac{4x}{6y}=\frac{2x+8}{3y+11}\)

<=>4x(3y+11)=6y(2x+8)

<=>12xy+44x=12xy+48y

<=>44x=48y(cùng bớt đi 12xy)

do đó x/y=48/44=12/11

Answer 2

\(\frac{4x}{6y}=\frac{2x+8}{3y+11}\)

Ta có:4x*3y+44x=6y*2x+48y

12xy+44x=12yx+48y

44x=48y

=>\(\frac{x}{y}=\frac{48}{44}\)

=>x/y=\(\frac{12}{11}\)