Question

which of the follwing is,l are solutions
of the pair of linear equations
2x-y=4and 4x-2y = 8​

Answer 1

Answer:

This linear equation has infinite solutions

Step-by-step explanation:

As

a1/a2 = b1/b2 = c1/c2

a1= 2; a2=4;

b1 = -1 ; b2= -2

c1 = -4 ; c2= -8

a1/a2= 2/4 =1/2

b1/b2 = -1/-2 = 1/2

c1/c2 = -4/-8 =4/8= 1/2

Therefore,

a1/a2= b1/b2= c1/c2

Answer 2

×=0, y= -4

Step-by-step explanation:

2x-y=4

-y=4-2x

y= -4+2x

4x-2(-4+2x)=8

4x+8+4x=8

×=0

2x-y=4

2×0-y=4

0-y=4

-y=4

y=-4