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:
bill is 6 george is 36 and mia is 12
Step-by-step explanation:
6 times 6 is 36 and 1/3 of that is 12. hope I did that right.
Answer:
3.4545
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
According to Euclidian theorem (x+9)^2 = 18*8
(x+9)^2 = 144 find the root for both sides
x + 9 = 12 subtract 9 from both sides
x = 3