-15n+16=86-29n    Solve value of n with Steps?
962270
-15n+16=86-29n\n29n-15n+16=86\n14n+16=86\n14n=86-16\n14n=70\nn=70/14\nn=5\n\nI hope I helped!
986254
(z^4)^2 - 14z^4 +16 =0\nQuadratic factoring:\nz^4 = (14+sqrt(196-64))/2 = 7+sqrt(33) =\n12.7446 so z = 1.89 or -1.89\nOR\nz^4 = 7-sqrt(33)= 1.2554\nso z= 1.059 or -1.059
748360
Regroup and add.  You got the 5n, so you should be able to get the other part!\n\nn + n - 1 + n - 2 + n + 7 + n - 11 = \nn + n + n + n + n - 1 - 2 + 7 - 11 =\n5n - 7\n\nNotice that -1 -2 - 11 = -14, add 7 to it and you get -7\n\nNRT
395559
im guessing you made a mistake typing that out\nit shud've been (4n2+6n-3)+(6n2-3n+1)\n\nthats 10n2 + 3n -2\n\nif you did actually type it right, it is\n\n10n2 + 6n - 5
817577
you are going to have to use SUBSTITUTION. meaning place the equations one above the other. See what you can cross out... i.e.\n\n1) TAKE OUT THE X'S BY MULTIPLYING THE FIRST EQUATION BY 5 AND THE SECOND EQUATION BY 3. YOU WILL GET...\n\n15x+20y+4z=35.\n-15x+9y+24z= -93\n\nthus, you can cross out the x's and get the equations:\n\n20y+4z=35\n9y+24z= -93, and now you must cross out the z's by multiplying the top equation by -6...\n\n-120y-24z=-210\n9y+24z= -93\n\nand, so on....
771112
nth term = n^2 - 192n + 9191\n\n1st differences :\n9000 - 8811 = 189\n8811 - 8624 = 187\n8624 - 8439 = 185\n8439 - 8256 = 183\n\n2nd differences :\n189 - 187 = 2\n187 - 185 = 2\n185 - 183 = 2\n\n3rd differences are all zero,\nso equation to sequence is a quadratic,\nof the form : an^2 + bn + c for n = 1,2,3, ...\n\nn = 1 → a*1^2 + b*1 + c = 9000\nn = 2 → a*2^2 + b*2 + c = 8811\nn = 3 → a*3^2 + b*3 + c = 8624\n\nor :\n\na + b + c = 9000\n4a + 2b + c = 8811\n9a + 3b + c = 8624\n\nThree equations in three unknowns\ncan then be solved for a, b and c,\nwhich results in a = 1, b = -192, c = 9191.
924033
Well, in order to solve it, you have to set it equal to something, because as of right now, it's just a random algebraic expression that means nothing.\n\nIf you set it equal to zero however...\n\n14c/15 + 7/17 = 0\n14c/15 = -7/17\n14c = -105/17\nc= -15/34
935657
5x = -15          x = -3\n-4x = 36          x = -9\n12+n/2=18      n = 12\n-25 = 5 - 6x     x = 5\n2x + 3x = -45  x =-9\n7n--n=48        x = 8
55351
rt11guru is correct up to the point where he says:\n\nX = ((2x2)^15)x((3x3)^6 x 3)x((5x5)^2 x 5)x((7x7)x7)\n\nThe number of possibilities is then given by:\n\nN = (16 * 7 * 3 * 2) - 1 = 671\n\nYou need to subtract 1 to account for the case where the divisor has no prime factors (and so equals 1).  If 1 counts as a solution (perfect square and divisor) the number of solutions is 672.
738486
8w-18 = 12w +14\n    +18           +18    add 18 on both sides\n\n    8w=12w + 32\n-12w   -12w          subtract 12w on both sides\n\n  -4w=32             solve for w\n   /-4    /-4\n\n   w= -8
909198
This question doesn't make sense.  There's no n in the equation.  n could be equal to anything.
410703
15 - 2(0)(2)\n15 - 0\n=15\nnow do ur own homework!!!!!!!!!!
848441
If you are solving for t and if the problem is supposed to be\n 0=16*(t^2)+80t, then t = 0 and/or -5. If the problem is supposed to be 0=(16t)^2+80t, then t = 0 and/or -5/16. To solve the problem, you just factor out a t, which implies that t is equal to zero, then set the rest of it equal to zero and solve for t.
874851
2Al (s) + N2(g) ----> 2AlN (s)
1185194
Remember two things with these equations:\n\nis =\nof *\n\nso your equation works out to:\n259 is x of 1650\n259 = x * 1650      or 259 = 1650x\n\nto solve for x, divide each side by 1650
130465
we need at least 12 terms\nSn = (n/2)*[2a1 + (n-1)d]\nin our series a1=11 and d=5. we need to find an n so that Sn>450:\n(n/2)*[2*11 + (n-1)5] = 450  /multiply equation by 2\nn*[22 + 5n - 5] = 900\nn*[5n + 17] = 900\n5n^2 + 17n - 900 = 0\nn1 = 11.82\nn2 = -6.92   /irrelevant\nwe want Sn to be greater then 450, and n has to be integer so the answer is n=12\nS12 = (12/2)*[2*11 + (12-1)*5]\nS12 = 6*[2*11 +11*5]\nS12 = 6*11*7 = 462 > 450
892797
okay so you start with:\n15-2n=6-n  ---> you subtract 6 from both sides\n-6       -6 \n-------------\n9-2n=-n ----> you then add 2n to each side\n +2n +2n\n-------------\n9=n