The answer is b ...........................
First subtract four from both sides and get n/2=-8. Then multiply both sides by 2 and get n=-16
Answer:
is equal to 0.5 percent and demand is clasic
I included the formula and the answer
The way i would do it , i would flip the 7 over the equal sign and every time you flip a number over an equal sign that number turns the opposite so in this case, 7 turns to -7 and then you would get -7 + 12, which is 5.