Question

X+y=-1,-3x-2y=4 find x and y

Answer 1

3x+3y=-3

-3x-2y=4

add kerne per...

y=1

putting value of y in 1st equation..

3x+3=-3

3x=-3-3

3x=-6

x=-2,y=1 Answer

Answer 2

By substitution method

X+y=-1...(1)

-3x-2y=4..(2)


Now,

X=-1-y..(3)

Replacing this value of X we got in (2)

-3(-1-y)-2y=4

3+3y-2y=4

Y=4-3

$<h3>Y=1</h3></tex] So, putting this value in (3) [tex]<h3>X=-2</h3>$