Question 326176: 7x - 6y =-9
5x + 36 = y
Answer by AAfter Search(61)   (Show Source):
You can put this solution on YOUR website! 7x - 6y =-9
5x + 36 = y => 5x - y = -36
Hence, the system of equations is
7x - 6y = -9
5x - y = -36 (multiply this equation by 6) we get 30x -6y = -216
Hence, the system of equations is
7x - 6y = -9
30x -6y = -216
---------------
(Subtracting)-23x = 207
=> x = 207/(-23) = -9
From the first equation, 7x - 6y = -9
7 (-9) - 6y = -9
=> -63 - 6y = -9
=> 6y = -63 + 9 = -54
=> y = -54/6 = -9
Hence, the solution set of the given system of equations is (-9, -9)
|
|
|
