Answer:
d
e
Explanation:
2x ≤ 5x - 15
step 1 subtract 5x from each side
2x - 5x = -3x
5x - 5x cancels out
we now have -3x ≤ -15
step 2 divide each side by -3
-3x / -3 = x
-15 / -3 = 5
IMPORTANT NOTE ( when you divide by a negative number you must flip the sign )
We would be left with x ≥ 5
now let's Plug in 10
2(10) ≤ 5(10) - 15
2(10) = 20
20 ≤ 5(10) - 15
5(10) = 50
20 ≤ 50 - 15
50 - 15 = 35
20 ≤ 35 ✓