SOLUTION: Find the value of k if 5x +7y = k and 10x + 14y = 3 have infinite number of solutions.

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Find the value of k if 5x +7y = k and 10x + 14y = 3 have infinite number of solutions.      Log On


   

Question 972320: Find the value of k if 5x +7y = k and 10x + 14y = 3 have infinite number of solutions.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the value of k if
5x +7y = k
10x + 14y = 3
------
Modify for elimination::
10x + 14y = 2k
10x + 14y = 3
-----
Subtract to get:
0 = 2k-3
k = 3/2
=============
Cheers,
Stan H.
------------