6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n
3(3n - 1)(n + 1)
6n - 2n + 2 = n - 11 4n - n = -11 - 2 3n = -13 n = -13/3 = -4.3333
6n
3n + 6 = n + 202n = 14n = 7
6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n
3(3n - 1)(n + 1)
6n - 2n + 2 = n - 11 4n - n = -11 - 2 3n = -13 n = -13/3 = -4.3333
perimeter equals 2 times width plus 2 times length so, perimeter equals 2(3n+2)+2(n-1) = 6n+6+2n-2 = 8n+4.
6n
6n = 12 n = 2
7n + 1 = 6n + 8 7n=6n+7 (minus 1 from each side) n=7 (7n-6n equals n, you are left with n=7)
3n + 6 = n + 202n = 14n = 7
2(n2+3n-54) 2(n+9)(n-6)
Simplify -6n+2+3n-3 So first let's combine the n terms. -6n and 3n is -3n since -6 and 3 is -3. Or, think of being in debt 6 dollars as -6n and someone gives you 3 dollars just because they are nice like those people who answer WikiAnswers.com. Now you are only in debt 3 dollars which we denote as -3 and n could be dollars or cents. Bottom line, when you combine the n's it is -3n. Next combine the numbers or constant terms, 2-3 is the same as 2+ (-3) which is -1. So the answer is -3n-1 which can also be written as -(3n+1)
3n+6=18 n+2=6 n=4
5-2=3n=3