Question

2y - x = 0; 10x + 15y =105​

Answer 1

2y-x=10

2y=10+x

y=10+x/2

put the above value of 'y' in

10x+15y=105

10x+15(10+x/2)=105

10x+150+15x/2=105

10x+150+15x=105×2

25x+150=210

25x=210-150

25x=60

x=60/25

x=12/5

Put this value of 'x' in 'y'

y=10+x/2

y=56/5

please mark it as Brainliest

Answer 2

Answer:

2y − x = 0 ⇒x=2y .....(I)

10x + 15y = 105 .....(II)

Taking out 5 common from (II)

2x+3y=21 .....(III)

From (I) and (III)

2(2y)+3y=21

⇒4y+3y=21

⇒7y=21

⇒y=3

x=2×3

=6