What is "x" in this problem?
369100
a(x^2)+2*(ax)+a=0\na(x^2+2x+1)\nLet a=0\nx^2+2x+1=0\n(x+1)^2=0\nsquare root of (x+1)^2=x+1 & square root of 0=0 \nSo,x+1=0\nx=0-1\nx= -1
914435
x > 5\n\n- - - - - -s-
893013
is it x-3/x+2 or (x-3)/(x+2)?\n\nlets assume the second one\n\n2x(x+2)/(x+2)=x-3\nx+2 cancels out\n\n2x=x-3\nx=-3
872873
There is only one value that works: \nx=1\n\nj
223861
Let x = 0.99999999999999...\n\nThen,\n10x = 9.99999999999999.....\nSubtract x\n\n10x=9.99999999999999.....\nx = 0.99999999999999.....\n\n9x = 9\nTherefore \nx = 1\nand\n0.99999999999999999..... = 1\n\nQED ^_^
195396
What's with the ... ? Is that a space for a number, are you supposed to guess whether to use the + or the x ? I don't get it, I think I'm gonna cry :~(
745882
C is correct but not complete... only the 3 is factored out... the real answer would be:\n\n3(x-1)(x+4)
1048409
It can be anything.  If you follow the sequence to (x-x) you will get an answer of 0 for the entire equation.
365867
2x - (7 + x) <= x\n2x - 7 - x <= x\nx - 7 <= x\n-7 <= 0\n\nSince we're left with a statement with no variables, and the statement is true, x = all real numbers.
1071898
it's x, assuming that x is zero or postive. \n\nif x is negative, it is either undefined, \nor if you use complex numbers, it is |x|=-x.
152774
I'm not sure if the x is supposed to be the multiplication symbol or a variable.\n\nIf you mean 2*(4*2) or 2(4*2), the result is: 16\n\nIf it is the letter "x", the answer is:\n2x(4*2) = 2x(8) = 16x
112971
There's a problem with equation. Go back and check it.\nAs it stands, no x would satisfy this.\nInfity is an abstraction, not a number.
622612
Joel, you need some help.  This is one of the easiest questions I have ever heard!  You should know this, man!  You're gonna fail your test if you keep cheating on here and don't actually figure out how it works.  Good luck, brotha'\n\nL = -2 or L(x) = -2
764329
x(abs[x- (x^2)] (-1=2)\n\n:> peace\n.
856711
because this has 2 unknowns it cannot be solved.\n\nbut I can write  x in terms of b\n\n2x = 13-b\nor x =(13-b)/2
561755
the question is not clear... base on your question, x might be 1.5
930501
There needs to be an "x" there somewhere.  If it were\n-4x + 7 > 15, you'd have \n-4x > 8\n  x < -2 (because you switch the sign when you divide by a negative)