Question

2y-x=0 ; 2x-y=15 solve by simultaneously ​

Answer 1

2y-x=0......1eqn

2x-y=15.......2eqn

eqn(2) me se eqn(1) minus karne pr

2x-y-(2y-x)=15

2x-y-2y+x=15

3x-3y=15

3(x-y)=15

x-y=5..........eqn3

now eqn(1)+eqn(3),

2y-x+x-y=5

y=5,

now ,from eqn 3

x-5=5

x=10,&y=5