if n>=4 then find wheather 2.n is less than 4.n or not.?
352665
2n is always going to be less than 4n when n is positive (which it is)
153400
i believe it would be '-9'\nn=5 \n-3-(5-1)(1.5)\n-3-(4*1.5)\n-3-6\n-9
811806
If x is 2, then 8x is 16.\n\nIf y is 3, then 4y is 12.\n\n16-12 is 4.  :o)
795059
You came up with x > -1 OR x < 7.  The "or" is key.  It can be less than 7, or  greater than -1.  There's no real number that doesn't fit the solution.\n\nFor the second one, you came up with x >= 0.8 AND x >= 2.  Similarly, the "and" is the key here.  Anything greater than or equal to 2 is going to be greater than 0.8, fulfilling both conditions.  The same cannot be said if the numbers are reversed.\n\nTo sum it up, if the problem has an "or" condition, every solution must solve at least one inequality.  If the condition is "and", every solution must solve ALL inequalities.
1149923
(2,-4) if f(x) is defined for x=2
522619
1 1 1 2\n1 1 2 1\n1 2 1 1\n2 1 1 1\n\nNo other case is possible, So n(A)=4\n\n\n1 1 1 3\n1 1 3 1\n1 3 1 1\n3 1 1 1\n\n1 1 2 2\n1 2 1 2\n1 2 2 1\n\n2 1 1 2\n2 1 2 1\n2 2 1 1\n\nNo other possibility\nn(B)=10
622196
bc when u have 2 and you take 4 away from it, you are negative 2--- think of it like this: 2-4=-2
287547
Condition: The other number is different from 7.\n\nLet n = the other number\n\nSolution:\n\n7 / n = n / 7\n\nn^2 = 49\n\nn^2 - 49 = 0\n\n(n + 7)(n - 7) = 0\n\nTherefore:\n\nn + 7 = 0...........or...........n - 7 = 0\nn = -7..............or...........n = 7 (reject)\n\nTherefore, the other number is -7 ANSWER
752254
Well, let's check if y=4.\nJust replace y with 4\n4(4) + 2(4) = 24\n16 + 8 = 24\n24 = 24 \nThis is equation is true, so you are correct.
972656
Let the lesser number be x. The greater number is 2x.\n\nIf the greater number is increased by 18, you get 2x + 18.\n\n4 less than 4 times the lesser number is 4x - 4.\n\nSo this means that 2x + 18 = 4x - 4.\n\nYou did make a good try at it though :D\n\nKeep on trying and you'll do fine.\n\nEDIT:\n\nThe Russian is also right (Da, Tovarisch!)\n\nBut if you recall, the problem also says that the greater number is twice the lesser.\n\nIf you're calling the lesser number y, then your x = 2y.\n\nThe advantage of this is that with the equation having only one variable, you can solve for one of the numbers easily, and then get the second.\n\nWhat you really have is a system of equations:\n\nx = 2y\nx + 18 = 4y - 4.\n\nNotice that you can directly substitute 2y for x.
55379
I would say, \n\nonly in the case when n=0 or 1, then this equation stands good! If n is not equal to zero or one, then everytime the answer would definitely be above 1 (even when u use negative integers)
65520
greater than\n\n2.14 > 1.24
636772
k=1/4 or k=2 or many more possibilities
309853
8!/(8-4)! = 1680 if order matters\n\n8!/(4!*(8-4)!) = 70 if order does not matter
904637
n + 8in. < 24in.\n    - 8in.    - 8in.\n          n< 16in.
100604
anything like, n.0... , n.1..., n.2..., n.3..., n.4... will be $n.\n\nanything like, n.5... , n.6..., n.7..., n.8..., n.9... will be $n+1.
168972
Your question does not make sense. x cannot be less than or equal to 0 and less than or equal to 7 unless it is less than or equal to 0, which I do not think you mean. \n\nI think you mean 0<=x<=7\n\nThe rest of the question makes no sense. \n\nAnd it really smells like a homework problem. Try thinking for a change.