Question

is equal to 4 x minus 2 y is equal to zero and 3 X + 4 y is equal to 20 x minus 4 and y is equal to 2 is a solution r is equal to x is equal to 4 and y= 2 satisfies both the above equation​

Answer 1

Answer:

Solution:- (A) one solution

For the given pair of equations x−2y=0 and 3x+4y=20;

a

2

a

1

=

3

1

c

2

b

1

=

4

−2

=

2

−1

c

2

c

1

=

−20

0

=0

As the given pair of linear equation satisfies

a

2

a

1



=

b

2

b

1

,

The graph will be a pair of lines intersecting at a unique point, which is the solution of the pair of equations.