real value of x? math question please help.?
957395
if it is square root of (x-2) then\naccording to the question x must be >\nwe have \n3 square root (x-2) > 0\n5x > 10\n=> 5x + 3 square root x-2 > 12 >0\nso this equation has no real root\n\nor\n\nlet t be square root of x , t here must be > 0\nwe have : 5t^2 + 3t -2 =0\n=> t = -1( <0 not acceptable ) or t = 2/5 ( acceptable )\n=> square root of x = 2/5 => x = 4/25
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
743387
Working above is good until this step:\n\n2 + 0.8x >0.9(x + 6)\n2 + 0.8x >0.9x + 5.4)\n0.1x > -3.4 ← Symbol error in this line\n\nShould read 0.1x < -3.4\nie x < -34
809248
Just break it into parts. X=1x. X can be any other variable but the thing that matters is that all the variables are the same. 1x-.8x=.2x. Then .2x-2.9x= -2.7x. It simplifies down to -2.7x but there is know way to figure out what the value of X is. If the equation was x-.8x-2.9x=any thing a value for x would be possible to find but there is known and so there is no way to find the value of x on it's own.
647936
The answer is 1 - you're raising a quantity to a power of 0, which always results in 1. The quantity within the parentheses contains no division by zero, so I know it's a real number, too.
433833
the answer to your question is x=3(4,6)
872873
There is only one value that works: \nx=1\n\nj
429058
x==(-b+/-sqrt(b^2-4ac))/(2a).
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
162293
On both equations, you have x^ but don't say what x was raised to. I'm assuming that it is x^2. Is this correct?
939267
Let x = "one number". \nThen, the "another number" is 2x.\n\nWhen the larger number is decreased by 10,\n\n2x - 10\n\nThe result is 2 greater than the smaller number\n\nx + 2\n\nTherefore,\n\n2x - 10 = x + 2, and\nx = 12.\n\nSo the two numbers are x and 2x, or 12 and 24.\n\nLet's put it back into the problem.\n\nOne number is twice another.  24 is twice 12.\nWhen the larger number is decreased by 10 (24 - 10 = 14), the result is 2 greater than the smaller number (2+12 = 14).  Therefore that's the answer!\n\nHappy solving!
926120
your variable is x so you replace that with 8, since x=8     since there are no signs between the 9 and x  in  9x  , that means to multiply them  so that is 72       so your answer is 72 + 5 or 77  , hope that helps
848127
When you added x to the right side, you should have gotten:\n\n4 = x^2\n\nThen take the square root of both sides to get\n\nx = 2, -2
745882
C is correct but not complete... only the 3 is factored out... the real answer would be:\n\n3(x-1)(x+4)
1013726
There is no real value for x that satisfies that equation.  It simplifies to (x-3) = (x+1).  In other words, (4(x-3))/4 does not = x+1.
468001
x+2 must not be 0\nso x must not be -2\ndomain is \nall real numbers - (-2)\nall real no except -2
89742
x and y are real numbers...if x+y=0,then how do i prove that x=-y?\nJust transfer the y variable to the right side of the first equation.\nx=0-y.\nAnd then you can just take out the zero.\nAnd you get x=-y