First example:
Subtract the 8n on both sides to get the variable on one side of the equation. Do the same for the regular numbers. Then divide by -3.

This should be your final answer.
Second Example:
Do the same thing as explained in Example 1. Here's some work to help guide you.

That should be your final answer here.
Third Example:

Hope this helps and its understandable! Let me know if you still don't understand.
3(5j+4)
15j+12
final answer 15j+12
The answer is A!! Hope I helped
Answer:
x= 11/3
Step-by-step explanation:
645/560=1.151785714
Ther perccent error in her estimate is 15%