Question

solve the following equations by cross multipication method x-y=1 &2x +y =8​

Answer 1

Step-by-step explanation:

ANSWER

2x+y−5=0

3x+2y−8=0

Using cross multiplication method, we get

b

1

c

2

−b

2

c

1

x

=

c

1

a

2

−c

2

a

1

y

=

a

1

b

2

−a

2

b

1

1

2

x

=

+1

y

=

1

1

So, x=2 and y=+1