Question

x -2/3y=8/3, 2x/5-y=7/5 by cross multiplication method​

Answer 1

Step-by-step explanation:

Given, pair of equations is 2x+3y−7=0 and

6x+5y−11=0

By cross-multiplication method, we have

⇒

−33+35

x

=

−42+22

y

=

10−18

1

⇒

2

x

=

−20

y

=

−8

1

I II III

On taking I and III ratio, we get

⇒

2

x

=

−8

1

⇒x=

−4

1

On taking II and III ratio, we get

⇒

−20

y

=

−8

1

⇒y=

2

5