Question

substitute 5x-3y=1 and 2x+5y=19

Answer 1

the ans is x=2 and y=3

Answer 2

5x-3y=1
5x=3y+1
x =(3y+1)/5
Put the value of x in second equ.

2x+5y=19
2[(3y+1)/5] +5y= 19
(6y+2)/5 +5 y=19
TAKE LCM

(6y+2)+ 25y= 19 ×5
31y+2 = 95
31y=95-2
31y= 93
y = 93/31
y= 3

now put the value of y in the first equ. to findx

5x-3y=1
5x-3(3)=1
5x-9=1
5x=10
x= 10/5
x= 2

I HOPE THIS ANS WILL HELP YOU