Question

Solve the pair of linear equation: -4X+Y=1 and 6X-5Y=9​

Answer 1

Answer:

-4x+y=1

y=1+4x ----(1)

and other equation 6x-5y=9

put value of y

6x-5(1+4x) =9

we get

6x-5-20x=9

-14x=14

x=-1

and put the value of x in eq 1

y =-3;

hope you like it

Answer 2

-4x + y = 1 .....(i) x 5

6x - 5y = 9......(ii) x 1

-20x + 5y = 5 (Adding)

6x - 5y = 9

___________

-14x = 14

___________

x= -1

Putting value of x in (i)

-4 x -1 +y = 1

=) 4 +y = 1

=) y= 1-4

=) y= -3

x= -1

y= -3 (Answer)