Question

x =3y, y= 2 is a solution of the system of linear equation 2 x + 4 y = 7 and 4 x + 8 y =. 19. true or false​

Answer 1

Answer:

False

Step-by-step explanation:

x = 3y and y = 2

y = 2 if we substitute in 1st equation we get

x = 3 × 2 = 6, x = 6

Now substitute these values in the equation.

2x + 4y = 7.

2 × 6 + 4 × 2 = 7

12 + 8 = 7

20 ≠ 7.

In 2nd equation,

4x + 8y = 19.

4 × 6 + 8 × 2 = 19

24 + 16 = 19

40 ≠ 19