Answer:
Step-by-step explanation:
0=2x+4
-4 on both sides
-4=2x
divid both sides by 2
-2=x
so x=-2
then y
y=2*-2+4
2*-2=1
y=1+4
y=5
1.3x10^-6
trust me it's right
y≥1/2x is the answer for this problem
its blue square sorry if its wrong i do my best ok