SOLUTION: Solve the following system by any method: x = 7/2 y + 9 2x - 7y = 18 Select the correct answer: The system is inconsistent. (-7, 10) (8, 7) (6, -8) (7, 8) Th

Algebra ->  Linear-equations -> SOLUTION: Solve the following system by any method: x = 7/2 y + 9 2x - 7y = 18 Select the correct answer: The system is inconsistent. (-7, 10) (8, 7) (6, -8) (7, 8) Th      Log On


   



Question 145180: Solve the following system by any method:
x = 7/2 y + 9
2x - 7y = 18
Select the correct answer:
The system is inconsistent.
(-7, 10)
(8, 7)
(6, -8)
(7, 8)
The equations are dependent.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
What pops out right away is I should multiply the 1st equation by 2
and then it will look like the 2nd equation
x+=+%287%2F2%29y+%2B+9
2x+=+7y+%2B+18
Now add 7y to both sides of the 2nd equation
2x+-+7y+=+18
2x+=+7y+%2B+18
Both equations are identical, so the answer is
that the equations are dependent