Question

x+y=103 ; x-2y=19 sove​

Answer 1

Step-by-step explanation:

x+y=103.

x=103-y. eq 1

x-2y=19. eq 2

so

taking the value of 1 in 2

103-y-2y=19

103-3y=19

3y=84

y=84/3

y=28

so now

x+y=103

y=28

x+28=103

x=75

Answer 2

Step-by-step explanation:

x+y=103 (1)

x-2y=19 (2)

2x+2y=206 (multiplying by 2 in equation (1))

2x+2y=206 (3)

x-2y=19 (2)

3x=225

x=225/3

x=75

x-2y=19

75-2y=19 (put X=75 in equation (2))

2y=75-19

2y=56

y=56/2

y=28