9/n+1/4=1  what is thevalue of n?
117580
9/n+1/4=1\n9/n=3/4\n3n=36\nn=12
127502
Several ways:\n\n(9 / 9) + 99 = 100\n99 / .99 = 100\n(9 / .9) * (9 / .9) = 100 \n\nhttp://www.iit.edu/~smart/acadyear/puzzles.htm
729363
9x-4=124\n9x=128\nx=14.22
432827
(n-1)!/(n+1)! = (n-1)!/((n+1)n(n-1)!)\n= 1/((n+1)n)\n= 1/(n^2+n)
71279
It'sa simple aquation...\n\nx-4/4-x = x-1-x = x-x-1 = 0-1 = -1
317034
A = P(1+i)^n\nP = 1000\ni = .08/4 = .02\nn = 8*4 = 32\n\nA = 1000(1+.02)^32\n= 1884.54
712395
9x+5/(x-4)+(-7x)/(x-4)\n=9x+5-7x/(x-4)\n=(2x+5)/(x-4)
707878
- a/b over 9/b = -(a/b) ( b/9) = -a/9 \nand\n(3) - a/b over 9/b = (3b-a)/b (b/9) = (3b-a)/9\n:D
67171
Use the distributive property:\n4*5x + 4*(-9) =24\n20x + -36 = 24\n      +36   +36\n20x = 60\n--------\n20    20\nx=3\nI realize you already have the answer but sometimes the path is more important than the destination...
764334
d=4\na=-1\ntn=a+(n-1)d\n=-1+(n-1)4\n=-1+4n-4\n=4n-5
123625
9/9 = 1\n12 / 4 = 3\n64 / 4 = 16\nso 1 - 3 + 16 = 14\nYep, it's 14
290027
9 - 48m^2 or 9(1-4m^2)\nthe 1 before the second set can be dropped, it's implied. Read it like this:\n(3*3)-(3(4m*4m))\n(9) - (3*16m^2)\n9-48m^2\nThen divide it all by the common 9\n9(1-4m^2) : That's your answer
532930
t is less than or equal to 9
758484
9 + 4r -7= 0\n-9              -9\n\n4r - 7 = -9\n     +7   +7\n\n4r      = -2\n\n4r/4   = -2/4\n\nr= -2/4 reduce it by dividing the numerator and denomenator by 2\n\nr = -1/2(solving for r)  or you could just leave it as 2+4r(simplify)\n\n\n5 + (-12t) + 8t= 0\n-5                     -5\n\n-12t + 8t = -5\n\n-4t = -5\n\n-4t/-4 = -5/-4\n\nt= 5/4  reduced by dividing 4 into 5\n\nt= 1 1/4(solving for t) or leave it as 5-4t(simplify)
411360
x = 4\ny = 9\n\nx^(1/2) + y = 11.... 1\ny^(1/2) + x = 7..... 2\n...\n1... 4^(1/2) + 9 = 2 + 9 = 11\n2... 9^(1/2) + 4 = 3 + 4 = 7 \n\n\nI will finish the working out later...
236201
It is very simple, first you should write it this way:\n\n1/3 2/4 3/5 4/6 5/7 , ...\n\nthe answer is n/(n+2) , n being a natural number.
537135
6+3 = 9\n5+4 =9\n10-1=9\n9x1=9\n27 divided by 3 =9\n8+1 =9