Question

answer it as fast as possible dear

Answer 1

2x + 3y = 11 .......(i)
2x - 4y = -24......(ii)

solving these equations by substitution method,
Now, from (ii), we get,

2x-4y=-24
2x=-24+4y
x=(-24+4y)/2
x=-24/2+4y/2
x=-12+2y...........(iii)

Put this value of x in (i), we get,

2(-12+2y) + 3y = 11
-24+4y+3y=11
7y=11+24
7y=35
y=35/7
y=5

now put this value of y in (iii)

=-12+2y
=-12+2(5)
=-12+10
=-2

y=mx+3 {y=5,x=-2)
5=m(-2)+3
5=-2m+3
5-3=-2m
2=-2m
2/2=-m
1=-m
-1=m

Answer 2

2x+3y=11 .........1
2x-4y=-24..........2
sub 2 from 1
2x+3y=11
2x-4y=-24
----------------
     -y =-13
y =13
substitute in 1 and find the value of x
and hence solve the remainig problem