Question

1/3x+y+1/3x-y=3/4 1/2(3x+y)-1/2(3x-y)=-1/8 comparative methods​

Answer 1

Step-by-step explanation:

Let t=

3x+y

1

andr=

3x−y

1

then equation will be

t+r=

4

3

;

2

t

−

2

r

=

8

−1

On solving we have

t=

4

1

andr=

2

1

∴3x+y=4and3x−y=2

Hence, x=1,y=1