6n take-away 4 = 2
I assume that you mean n = 3 6n + 4 = 6(3) + 4 = 18 + 4 = 22
f(n) = 14 - 6n -6n+20
6n=24 you divide both sides by 6 to leave n by itself. the answer is 4.
-1
6n -3=2n+9 6n-2n=9+3 4n=12 n=12/4 n=3
I assume that you mean n = 3 6n + 4 = 6(3) + 4 = 18 + 4 = 22
14
12m + 9n - 4 - 10m + 6n = 2m + 15n - 4
6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n
6n + 4 = 40(Minus 4 on both sides)6n = 40 - 46n = 36(Divide by 6 on both sides)n = 36/6= 6
4
The answer is: n=4.
f(n) = 14 - 6n -6n+20
6n=24 you divide both sides by 6 to leave n by itself. the answer is 4.
So far, the best and most general pattern found is that, over three, all prime numbers are of the form 6n +/- 1. In other words, they're either 6n - 1 or 6n + 1, for some n. Here is why this is true. We could do a proof by contradiction and assume that all the natural numbers greater than or equal to 5 are prime. (of course they are not!) We start with5 which is 6-1. The numbers would then be 6n - 1, 6n, 6n + 1, 6n + 2, 6n + 3, 6n + 4, and 6n + 5 for some natural number n. If it is 6n, then the number is divisible by 6. When it is 6n + 2, the number is the same as 2(3n+1) so it is divisible by 2. Consider 6n + 3, the number is 3(2n+1), so it is divisible by 3. Last look at 6n + 4, the number is divisible by 2, for it's 2(3n + 2). Therefore all numbers of the form 6n, 6n + 2, 6n + 3, and 6n + 4 are not prime. The only possibilities this leaves are 6n - 1 and 6n + 1. This entire thing can be written more elegantly with congruences, but the goal here was simplicity! There are many other patterns in primes. See the attached link to see them.
-1
Yes, it can mean the same but it depends on the context."What is 8 less 4?" means the same as "what is 8 takeaway 4?" (i.e. 8 - 4 = 4)However, "Is 3 less than 4?" is not asking "Is 3 takeaway 4?" as that question would make no sense!