Need Help. What is -6x -6x. Is it 0, or is it -12.?
918458
Look at it this way:\n(-1)*(6x + 6x) = (-1)*(12x) = -12x
919399
6(x+4)-2x=-8\n6x+24-2x=-8\n6x-2x+24+8=0\n4x+32=0\n4x=-32\nx=-32/4\nx=-8
942991
6+4x+6-3x=x\n\n12-12x= x/12x +12x\n\n12=13x\n\n12/13= x
812732
2^(4x) - 4(2^(2x)) - 12 = 0\n\nFirst, note that 2^(4x) is equal to (2^(2x))^2\n\n(2^(2x))^2 - 4(2^(2x)) - 12 = 0\n\nThen, solve it like a quadratic.  Let y = 2^2x and you get:\n\ny^2 - 4y - 12 = 0\n(y - 6) (y + 2) = 0\n\ny = 6\ny = -2\n\nSubstitute y = 2^(2x) back to get\n\n2^(2x) = 6\n2^(2x) = -2\n\nYou can throw away the second equation because you can neve get a negative result from 2^(2x).  So we just deal with the first one.\n\n2^(2x) = 6\nConvert to logarithmic form\n\nlog[base 2](6) = 2x\nx = log[base 2](6) / 2\n\nThat can be simplified even more, but I'll leave that assignment up to you.
68748
uhm, ZERO!  0x2=0  what, did you fail basic math?
861014
13 + (-12) - (-5) is the same as: 13 -12+5 = 6
1003229
this is 0 dude...you will get x-x term which is zero and hence entire thing is 0.
952946
12=10-x\nadding -12\n0=-12+10-x\n=-2-x\nadd 2 \n2=-x\nmultiply by -1\nx=-2\n\n2.1-9=y+2\n-8=y+2\nadding -2\n-8-2=y\ny=-10\n\n3.yes you are on the right track
819891
2(x-6)=3x\n\n1.Distribute the 2 to the X and the 6. \n2x-12=3x\n\n2. Subtract the 2x from the left side and subtract it from 3x\n-12 = 1x\n\n3.flip the problem so it looks pretty!\nx = -12\n\nYour Welcome :D
749417
-14‹2x-6≤12\n -14+6<2x<=12+6\n -8<2x<=18\n -4<x<=9
514419
3x+6/x2-9 / 6x2+12x/4x+12\nIs this all one problem?\n(3x+6)/(x^2-9) / [(6x^2+12x)/(4x+12)]\nWhen dividing by a fraction, flip the second fraction and multiply.\n= (3x+6)/(x^2-9) times (4x+12)/(6x^2+12x)\nFactor everything first.\n3x + 6 = 3(x+2)\nx^2 - 9 = (x+3)(x-3)\n6x^2 + 12x = 6x(x+2)\n4x + 12 = 4(x+3)\n(3x+6)/(x^2-9) times (4x+12)/(6x^2+12x)\n= 3(x+2)/[(x+3)(x-3)] times 4(x+3)/[6x(x+2)]\nNow you can cancel anything that is on top of the fractions with anything that is on the bottom of the fractions.\n(x+2) and (x+3) cancel.  3 times 4 is 12 and 12 divided by 6 is 2.\n= 2/[x(x-3)] or 2/(x^2 - 3x)
1137110
first distribuit\n24x-6x=12x-36\nthen\n18x=12x-36\n-12x\n6x=-36\ndivide\nx=-6\n\nadd x\n-10>x+36\nsubtrack 36\n-46>x\nso\nx<-46
270378
-12 and 10 are both correct since\n\n-12 + 1 = -11 and | -11 | is 11\n\n10 + 1 = 11 and | 11 | is 11
984884
Adding and subtracting:  You use the sign from the largest number.\n\nIn your example: 8x +6x + 2 + 10\nAll are positive.  You have 14x + 12\n\nLet's say you  have 8x - 6x.  the 8 is bigger and is positive so your answer is positive.  It's 2x.\n\nNow try 6x - 8x.  The 8x is negative and is the larger number.  So it is going to be negative.  The answer is - 2x.  \n\nIf multiplaying or dividing:\n\n+ and + is +\n+ and  - is -\n-  and -  is + \n\nYou must have to memorize those.  Remember, it's always positive unless one sign is positive and one negative.  Then it is negative.\n\nBest Wishes,\nSue
705155
10 + 6x = 4x - 4\n2x = -14\nx = -7
806909
I POSTED THE FIRST CORRECT ANSWER HERE AND WAS WRONGLY DELETED FOR A BOGUS VIOLATION REPORT\n\nI posted last night around 12pm, here was my (correct) answer:\n\nOk so let the tens digit be x, then the ones digit is (12-x). The value of the number is 10*x+(12-x) = 9x+12 which you are told = 11x 9x+12=11x 12=2x x=6 12-x=6 also So the number is 66. (Check x = 6*11 as claimed.)\n\n(There is some severely dishonest point-gaming going on around here)
612346
Fact or out the x. This leaves 36x^2-84x+49 which is a perfect square (6x-7) so it facotrs to:\n\nx(6x-7)(6x-7)