Answer:
(-∞,-4)
Step-by-step explanation:
1. Move like terms together
-4x + 18 ≤ - 2 -9x
Move -9x, the sign changes to a positive
-4x + 18 +9x ≤ -2
Move 18, the sign changes to a negative
-4x + 9x ≤ - 2 -18
2. Combine like terms
-4x+9x becomes 5x
-2-18 becomes -20
The new equation is 5x≤-20
3. Divide both sides by 5
5x÷5=x
-20÷5=-4
x≤-4
4. Write in interval notation
