Question

If 3x+ 5y =5 and 5x+ 3y= 7 then find the value of x- y​

Answer 1

Answer:

use elimination method you find the value of x and y then the value substitute in x-y

Answer 2

Answer:

1

Step-by-step explanation:

by elimination method

solving these 3x+5y=5----------->(1)

5x+3y=7----------->(2)

(1)×5 15x+25y=25

(2)×3 15x+9y=21

solving these 16y=4

y=4/16

y=1/4

sub y=1/4 in (2)

5x+3(1/4)=7

5x+3/4=7

5x=7-3/4

5x=28-3/4

5x=25/4

x=25/4×5

x=5/4

we have x=5/4 and y=1/4

x-y= 5/4-1/4

x-y=4/4

x-y=1