Answer:
15, 17, 19
Step-by-step explanation:
x + x+2 + x+4 = 15 + (x+2 + x+4)
3x + 6 = 15 + 2x + 21
x = 15
x+2 = 17
x+4 = 19
Answer:
{-1, 9/4].
Step-by-step explanation:
-4x - 4 ≤ 0
4x - 4 ≤ 5
From the first equation:
-4x ≤ 4
x ≥ -1.
From the second:
4x ≤ 9
x ≤ 9/4.