Answer:
Step-by-step explanation:
3a-8a>-20
-5a>-20
a>-20/-5
a>4
Answer:
(x-3) and (x+3) I think
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given the expression

Remove parentheses: (a)=a

Group like terms

Add similar elements
∵ 
Add similar elements
∵ 
Thus, the equivalent expression in simplified form:
