Question

Check if 3x+y=7 and 6x+2y=8 are consistent or inconsistent

Please solve quickly​

Answer 1

Answer:

These equations are inconsistent.

Step-by-step explanation:

Let us take 3x+y-7=0 as (1) and 6x+2y=8 as (2)

a1 = 3

a2 = 6

a1 / a2 = 1/2

b1 = 1                                                     a1 / a2 = b1 / b2 ≠ c1 / c2 = 0

b2 = 2                                          These equations have no solutions.

b1 / b2 = 1/2                                  These equations are inconsistent.

c1 = -7

c2 = 8

c1 / c2 = -7/8