How do you solve this math problem?
465353
You must have meant y = z e^(-x). Substituting: \n\ny' = (z'-z)e^(-x)\ny'' = (z''-2z' + z)e^(-x)\n\ninto the equation gives (answer to (a)):\n\nz'' = -2\n\nwhich has solution (answer to (b)):\n\nz = -x^2 + Ax + B\n\nwhere A and B are constants, so the solution to the original equation is:\n\ny = (-x^2 + Ax + B)e^(-x)
51473
x+3  This is the right answer, because there is no =s sign in the problem.\n\n3x+9-2x-6\nx+3
909143
take out the x\nx(a-b)=6\nx=6/(a-b)
937830
T=m1*-9.8+m1*a\nT=m2*a--m2*-9.8\n\nset them equal and solve for a\n\ntrust me, i had a test on this today
703752
simply subtract 7 from both sides. This leave you with\n\nx<_3
1102516
by any chance is this a question from your maths homework? lol :D\n\nI cant work it out myself because to put it simple, im crap at maths.
390719
so you have (1/2)a+a-(6/3)=4+(1/3)a\n\nadding like terms: (3/2)a-2=4+(1/3)a\n\nsubtract (1/3)a from (3/2)a and add two to both sides:\n(3/2-1/3)a=4+2\n(9/6-2/6)a=6\n(7/6)a=6\n\nnow solve and what do you get? :)
12044
By using the FOIL method, the final answer will be \n\n3x squared - x - 4
720423
2x+3=9\n\nsubtract 3 from both sides:\n\n2x=6\n\ndivide both sides by 2:\n\nx=3
29264
Yuo can't solve this.Because it is a formula and not an equation..If u assign some value equal to this formula such as 0 u have the solution.
727014
start with the O... they are always -2\nsince there are 2, and the compound must balance...\nPb must be +4\n\nso you get +4 -2
3037
This is not presented as an equation, so the goal appears to be to combine the rational expression --> x+10 \nThat's all you can do with the question as it is written.
891258
Try 1 ÷ 3\n\n1/3 = 0.33333.....\n\n~ ♥ ~
934652
So let's say the problem looks like this\n\n   11\nx 12\n--------\n        <-----the answer from 11*2\n       <------answer from 11*1\n\nfirst hide the 1 from the 12 and work out the problem as 11*2\nthen work on multiplying the 1 with 11 but make sure you start putting your answer down below your first answer and the answer starts in the column that is below the 1 from the 12.\n\nfinally when the two answers are found, you can add them and get your final answer. SOOO here's what it looks like\n\n      11\n   x  12\n--------------\n           22    (this is from 11x2)\n +  11       (this is from 11 x1)\n------------\n     132 = final answer!
209433
Let x be the number inches she started with.\n\n(1/2)x + (3/8)x + 3 = x\n(7/8)x + 3  = x\n3 = (1/8)x\nx = 24
842934
Ok, first you must get the -8 and the x/-2 out of parentheses, so u just multiply them both by one. So then is -8 * x / -2. First, you do -8 * x, which is -8x. The problem then becomes -8x / 2. In this step, just don't mind the negative or the x and just put them back in at the end. So you're really just doing 8 / 2, which is 4. You must put the - and the x back in, so the answer is -4x. Ta Da!
1063248
To solve correctly, distribute two to x and -2, add four to both sides, and divide both sides by x:\n\n2(x - 2) = x + 3\n2x - 4 = x + 3\n2x = x + 7\nx = 7\n\nThe error that was made was trying to simply remove the parentheses instead of actually distributing 2 to both of its contents.\n\n-----\n\nIf this is not what you meant and I have read it backwards, this is the other interpretation:\n\n-----\n\nTo solve correctly, add two to both sides, then divide both sides by x:\n\n2x - 2 = x + 3\n2x = x + 5\nx = 5\n\nThe error that was made was trying to change 2x [2 times x] into 2(x - 2) [2 times the difference of x and 2]. This is not allowed.