Answer:
7n = 12+ 3n
Step-by-step explanation:
The first thing to do is subtract 3n from 7n. This would get you 4n = 12. 4 times 3 equals 12, so n equals 3.
To check your answer. 21 = 12+9. sure enough it matches our answer
Answer:
y = 33/7 and x = 41/7
Step-by-step explanation:
I'm writing this cuz I gotta get it to 20 characters.
Sounds like:
12
3^2 + ---------- * (8). This evaluates to 9 + 4 * 8 ), or 9+32, or 41.
3
Note the importance of applying Order of Operations rules correctly here.
62.5% is the percent off 5/8