Question

(n²-4²) (n+ 2y +1)+ atyti =​

Answer 1

Answer:

2x+y=3⇒y=3−2x

Substituting y=3−2x in x−2y=1 we get

x−2(3−2x)=1

⇒x−6+4x=1

⇒5x=1+6=7

⇒x=

5

7

Put x=

5

7

in x−2y=1 we get

⇒

5

7

−2y=1

⇒−2y=1−

5

7

=

5

5−7

=

5

−2

⇒y=

5

1

∴x=

5

7

,y=

5

1