Answer: x ≤ -1
Explanation:
1. Find the common base.
125 and 25 can be simplified to 5³ and 5²
2. When the bases are equal, you ignore them and solve for x with the exponents. Make sure you multiply the new exponents with the old ones before solving.
3(2x) ≥ 2(4x+1)
6x ≥ 8x + 2
-2x ≥ 2
x ≤ -1 (flip greater than sign when dividing by negative number)