Question

Do the following pair of linear equation have no solution x=2y;y=2x

Answer 1

x = 2y

so, x - 2y = 0
   and 2x - y = 0

so, 1/2 ≠ 2/1
      a1/a2 ≠ b1/b2

so, these pair of eqn has one unique solution which is x =0 and y = 0

Answer 2

Answer:

No

Step-by-step explanation:

The given linear equations are

$x=2y......(1)\\\\y=2x......(2)$

Substituting the value of x from equation (1) in equation (2)

$y=2(2y)\\\\y=4y\\\\3y=0\\\\y=0$

Plugging this value in (1)

$x=2\cdot0\\x=0$

Hence, the given system of linear equation has a unique solution x=0, y=0

Therefore, No, the given pair of linear equation have don't have no solution