How do you solve the system of equations #2x=y# and #4x-y=-2#?
1 Answer
May 18, 2016
(-1, -2)
Explanation:
Set "2x = y" equal to 0
2x - y = 0
Do the same for "4x - y = -2"
4x + 2 - y = 0
2x - y = 0
-1(4x - y + 2 = 0)
2x - y = 0
-4x + y = 2
-2x = 2
x = -1
2(-1) - y = 0
-2 - y = 0
-y = 2
y = -2
