Answer:
-4
Step-by-step explanation:
-5 + ______ = -9
-5 + -4 = -9
4 ( x + 9) = x + 9 <em>(remove the parantheses)</em>
4x + 36 = x + 9<em> (move the terms)</em>
4x - x = 9 - 36 <em>(collect like terms and calculate)</em>
3x = -27 <em>(divide both sides)</em>
solution : x = -9
Answer:
If I'm correct I think 4 is the polygon
The graph has an open circle
You do the reverse and divide the 2 values to find out the last one
72/9 = 8
Do you get it?