Question

4x-3y=11;2x-5y=-5 by cross multiplication method​

Answer 1

Answer:

4x-3y=11

2(2x-5y)=-5

= 4x-3y=11

4x-10y=-10

change the signs

4x-3y=11

-4x+10y=10

x gets cancelled then we have 7y=21

y= 21/7

y= 3

substitute y=3 in equation 1

4x-3y=11

4x-3(3)=11

4x-9= 11

4x= 11-9

4x=2

x=2/4=1/2

therefore x=1/2 and y=3