Answer:
x ≥5 or 5 ≤x
Step-by-step explanation:
2x ≤ 5x - 15
Subtract 5x from each side
2x-5x ≤ -15
-3x ≤-15
Divide each side by -3, remembering to flip the inequality
-3x/-3 ≥ -15/-3
x ≥5
Check x=10
2*10 ≤5*10 -15
20 ≤50 -15
20 ≤35
True
