D is the answer
(4+8)+1 = 13
4+(8+1) = 13
Therefore equation D is true
Hey don't cry . I'm not good at math either but try to take a deep breath.
Answer:
x + 4 < 8
- 4 -4
x < 4
Step-by-step explanation:
So, Basically anything less than 4 is a solution for this equation.
Answer:

Step-by-step explanation:
