Question

Arvind and vinod have some erasers.Arvind said to vimod,if you give me 10 erasers,I will have twice the erasers left with you.Represent this sotuarion as a linear equation in two variables

Answer 1

let Arvind has x erasers and Vinod has y erasers.
if Vinod gives 10 erasers to Arvind
then vinod has y-10 erasers now and Arvind has x+10 erasers .
now, if Arvind has twice the erasers left with Vinod
then x+10=2 (y-10)
or,x+10=2y-20
or,x-2y+30=0
this is the linear equation

Answer 2

Answer:

let Arvind has x erasers and Vinod has y erasers.

if Vinod gives 10 erasers to Arvind

then vinod has y-10 erasers now and Arvind has x+10 erasers .

now, if Arvind has twice the erasers left with Vinod

then x+10=2 (y-10)

or,x+10=2y-20

or,x-2y+30=0

this is the linear equation