Question

求值：x+3y分之x-2y,3x-5y=0

Answer 1

3x-5y=0

3x=5y

x/y=5/3

(x-2y)/(x+3y)

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

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

=(5/3-2)/(5/3+3)

=(-1/3)/(14/3)

=-1/3*3/14

=-1/14