Answer:
x ≥ -2
Step-by-step explanation:
2x - 4 ≤ 4x
Subtract 2x from both sides:
-4 ≤ 2x
Divide by 2:
-2 ≤ x
So -2 ≤ x, or x ≥ -2.
You can check your answer by picking a number greater than -2 and see if it works. For example, if x = 0:
0 - 4 ≤ 0
-4 ≤ 0
