Question

find (x+y)÷(x-y) if x=5by2 y=-3by4​

Answer 1

Answer:13/7

Step-by-step explanation:

(5/2+3/4=13/4) /(5/2-3/4=7/4)=13/4*4/7=13/7

Answer 2

Answer:

x=5/2 y=-3/4

Therefore,

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

=5/2-3/4

=20-6/8

=14/8

=7/4-------(1)

also,

(x-y)=5/2-(-3/4)

= 5/2+3/4

=20+6/8

=26/8

=13/4-------(2)

Therefore,From (1) and (2)

(x+y)/(x-y)=7/4/13/4

=7/4×4/13

=7/13