Answer:
Can you give me any more context?
Answer:
+9
Step-by-step explanation:
12-9+x=12
3+x=12
x=12-3
x=9
Answer: -1 three times and -1 five times
Step-by-step explanation:
-1 three times = -1 X -1 X -1 = -1
-1 two times = -1 X -1 = 1
-1 four times = -1 x -1 x -1 x -1 = 1
-1 five time = -1 x -1 x -1 x -1 x -1 = -1
Therefore -1 three times and -1 five times will be negative
4x + 15 = 79
- 15 -15
4x = 64
X = 64/4