6m + 5n - 4m + 7n = 2m + 12n
Assuming you meant 7n (not just 7 at the end of your question) - first... simplify the equation. Numbers raised to powers get priority - so your new sum is... 5n - 64n + 25n + n + 7n.... This simplifies to... -26n
1 - 7n = 15 - 5n Add 5n to each side: 1 - 7n + 5n = 15 -5n + 5n ie 1 - 2n = 15; subtract 1 from each side: -2n = 14 divide both sides by -2: n = -7
22n + 2.
9 - 5n
7n - 2 + 3n + 4 = 7n + 3n - 2 + 4 = 10n + 2 which can be simplified to 2(5n +1)
3n + 3(6 + 7n) = 3n + 18 + 21n = 24n + 18
7n + 1 = 6n + 8 7n=6n+7 (minus 1 from each side) n=7 (7n-6n equals n, you are left with n=7)
8n + 7 - n - 98 = 7n - 91
2-n-7n = 2-8n
7n -1n,0n,1n,2n,3n,4n,5n,6n,7n 1 2 3 4 5 6 7 8 9
This might be the stable isotope of beryllium, 9Be: alpha + 9Be -> 12C + n alpha: 2p + 2n Be: 4p + 5n left side: 6p + 7n C: 6p + 6n right side: 6p + 7n Incidentally, this would not be a decay, rather an transfer reaction, I think.
It is 2n^3 + 7n^2 - 13n + 3
n(2n - 1)(2n + 7)
A variable comes after the number 2n+5n=7n
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If the forces acting on an object are equal there is no motion (5N->O<-5N). If the forces are unequal there is movement (7N-->O<-5N).
12m + 3n - 6m + 7n6m + 10n
5n+2n=7n If the variable is the same, n, then you can add the coefficients, 5 and 2. In General an+bn=(a+b)n FOR A CASE THAT DOES NOT WORK. 5n+2m=5n+2m You cannot combine unlike variables
n > 2
The answer to 2N-4 time 7N plus 7 equals -10.50. This is a math problem.
This question as written can be taken two ways: 9m + 6n - 3m + 7n = 6m + 13n, or (9m + 6n) - (3m + 7n) = 9m + 6n - 3m - 7n = 6m - n