Question

please solve this as soon as possible ​

Answer 1

3x-y=11

2x+5y=-4

multiple eq 1 by 5and2by 1

15x -5y =55

2x+5y=-4

by adding eq

15x-5y=55

2x+5y=-4

we get 17x = 51

x = 51/17=3

put value in eq1

3x-y=11

3×3-y=11

9-y=11

-y= 2 , y=-2

please follow me

Answer 2

3.let the smaller angle be x and larger angle be 90-x

so atq

90-x-x=6

90-2x=6

90-6=2x

84=2x

x=84/2

x=42

therefore smaller angle =x= 42

larger angle=90-x= 90-42=48

2.

3x-y=11

3x-11=y...........1

2x+5y+4=0

substituting value of y

2x+5(3x-11)+4=0

2x+15x-55+4=0

17x-51=0

17x=51

x=51/17

x=3

putting value of x in eq 1

3x-11=y

3(3)-11=y

9-11=y

y=-2