The common difference is 3
Answer:
A literal equation is an equation which consists primarily of letters. Formulas are an example of literal equations.
-2a-9=6a+15
Move 6a to the other side. Sign changs from +6a to -6a.
-2a-6a-9=6a-6a+15
-2a-6a-9=15
-8a-9=15
Move -9 to the other side. Sign changes from -9 to +9.
-8a-9+9=15+9
-8a=15+9
-8a=24
Divide both sides by -8
-8a/-8=24/-8
a=-3
Answer: a=-3
Answer:
answer
Step-by-step explanation:
The proper answer to this question is "21378.6".
Reason:
2.13786 *10^4