Answer:
12
Step-by-step explanation:
You do what's in parentheses first, but everything is in parentheses so it's pretty much ineffective. In PEMDAS, addition and subtraction are coupled so you do them left to right. 6-1 is 5 and 5+7 is 12.
Isolate the r. Note the equal sign. What you do to one side, you do to the other.
Divide i from both sides
e/i = ir/i
r = e/i
r = e/i is your answer
hope this helps
Answer:
D I belive
Step-by-step explanation: