PLEASE HElP...\n\nwhat is x/4=9/3?\n\nI need to solve for x...\n\nPlease tell me the answer and why that is the answer.\n\nAlso, 7/5=x/3
205392
X/4=9/3\n=>X=4*9/3 = 36/3 = 12\n\n7/5=X/3\n=> X=3*7/5 = 21/5 = 4.2
347375
Alright, don't listen to the above post...\n\nGrade 12 here, answering questions all day for mere fun.\n\n12)\ny - 3 = -1/3 (x + 4)\n\nEXPLAINED\n\nadd 3 to both sides\ny = -1/3 (x + 4) + 3\n\nexpand 1/3(x + 4) \n= x * 1/3 + 4 * -1/3\n= x/3 + 4/3\ny = -1/3x - 4/3 + 3\n\nTo add -4/3 and 3, use 3 = 9/3\ny = -1/3x - 4/3 + 9/3\ny = -1/3x + 5/3\n\nTrue, my bad. I originally added 4/3 instread of -4/3\n\n\n16)\n(-2, -1) (4, -4)\n\nm = Dy / Dx\nm = ((-1) - (-4)) / ((-2) - (4))\nm = 3 / -6\nm = -1/2\n\ny = mx + b\n(-1) = -1/2(-2) + b\n-1 = 1 + b\n-1 - 1 = b\n-2 = b\n\ny = -1/2x - 2\n\nCHECK\ny = -1/2(4) - 2\ny = -2 - 2\ny = -4\nTherefore it works.\n\n18)\n(0, 0) (2, 3)\n\nm = Dy / Dx\nm = ((3) - (0)) / ((2) - (0))\nm = 3/2\n\nb = 0\n\ny = mx + b\ny = (3/2)x + 0\ny = (3/2)x\n\nNote, the lower post copied my answers
205259
Is it an equation? then it goes like:\n3/(x-5)=2/(5-x)\n3*(5-x)=2*(x-5)\n15-5x=2x-10\n15+10= 2x+5x\n7x=25\nx=25/7=3 4/7 \n\nOt it's an expression to simplify?\n3/(x-5)+2/(5-x) = 3/(x-5) - 2/(x-5)\n = 1/(x-5)
118023
Dividing does work.  Remember: when you divide by a fraction, you flip it.\n\nSo:\n\nX x 3/4 = 1/4\n\nX = 1/4 x 4/3\n\nX = 1/3
382896
You again???? If you keep having people do your homework, you wont learn! \n9.8 + x/5 = 10.4\n\n  x/5 = 10.4 - 9.8\n  then to eliminate that 5 \n 5 *  x/5 = 0.6 * 5\n\n    x= 3\nthen substitute to check answer
670876
This is actually a very classic problem you ask. 3/3 does equal 0.999... but it also equals 1.\n\nLook at this link for further explanation: http://mathforum.org/dr.math/faq/faq.0.9999.html
489476
x can be zero to make the whole equation 0\n\n(2x-5) = 0...x = 5/2 plug it in and it does work\n\n(3x+9) = 0...x = -3 (but no negative reals)? so i guess that doesn't count?
387623
First one : - ...Correct! Congratulations!\nSecond one : - ...hmm could be wrong\n\n(x - 2)^2 = 3/5\nx - 2 =+-sqrt3/5\nx = 2 +- sqrt3/5\n\nThird one : - hey there is no harm in trying!\n\n(x - 3)^2 = 2\nx - 3 = +-sqrt2\nx = 3 +-sqrt2\n\nBest of luck!!
95531
4\n\n5+3 = 8\n\n8/2 = 4\n\nEdit: if you're saying it's tricky, maybe you mean (5+3)/2 IS (5+3)/2 or "five plus three all divided by two (is equal to four)"?
540045
Is (x+3) over 4 only, or over 4-2 ?  It's hard to tell from your problem, so I am going to assume it's over 4-2 = 2 unless you let me/us know otherwise by adding a comment to this question.\n\nCross multiply to solve:\n\n5 * (x+3) = (4-2) * (5x-2)\n\n5x + 15 = 10x - 4\n\nSubtract 5x from both sides:\n\n15 = 5x - 4\n\nAdd 4 to both sides:\n\n19 = 5x\n\nDivide both sides by 5:\n\nx = 19/5
117654
1) First we move all the factors with x to one side, and the ones without x to the other.  Result will be:\n\n4x/3 - 2x + x = 3/2 + 1/5\n\n2)  Then, we factor out an x from the left side and get:\n\nx(4/3 - 2 + 1) = 3/2 + 1/5\n\n3)  Calculate the actual numbers on both sides\n\nx(4/3 - 6/3 + 3/3) = 15/10 + 2/10\nx(1/3) = 17/10\n\n4)  Divide both sides by 1/3 and get a final result of...\n\nx = (17/10)/(1/3)\nx = (10/17)*(3/1)\nx = 30/17\n\n5)  Comform that I PWN n00bs.  And... I'm pretty sure I pwn n00bs.  Therefor, we are done!  ^-^
429727
I assume that you mean 1/(x+5) + 3/(x+4) = -1(x^2+9x+20)\n\nTaking the left hand side...we make one fraction by using a common denominator.\n\n[ 1(x+4) + 3(x+5) ] / (x+5)(x+4) = -1(x^2+9x+20)\n-->\n\n(4x+19)/(x^2 + 9x + 20) = -1(x^2+9x+20)\n\nEquating numerators since denominators are the same...\n\n4x + 19 = -1\n4x = -20\n\nx = -5\n\nPlease note that even though -5 solves the equation, when substituted back into the original equation, you will get undefined terms ( 1/0 = infinity) on both sides.
24585
3/4(5 1/3-8/9)=1/2(5 1/3+2/3\n3/4(48/9-8/9)=1/2(6)\n3/4(40/9)=3\n10/3=3\n3 1/3=3\nfalse
284508
Solving for x in the first equation gives us...\n\nx + 5 - 5 < 4 - 5\nx < -1\n\nSolving for x in the second gives us...\n\n2 - 7x - 2 < 16 - 2\n-7x < 14\n---   ---   Here, don't forget to swap the sign\n -7    -7   since we are dividing by a negative.\nx > -2\n\nSo use that to find your solution set.  We know x must be less than -1 but greater than -2.  \n\nHope this is helpful.
110545
3x+4/12*8/9x+12\n3x+12 is separate, so put that to the side\n4/12=1/3*8/9x=2.3x+3x=5.3x+12\n\nthe answer is 5.3x+12
527584
hi dear xmixxdiam \n\n(7/20 + 3/5) - (3/8 x 4/9)\n● Part 1\n7/20 + 3/5\n- first take a common denominator and its ' 20 ' \n( 7 + 12 ) / 20 = 19 / 20 \n\n● Part 2\n3/8 * 4/9 = (3  / ( 4 * 2) ) * ( 4 / (3 * 3))\n- Now cancel " 3 " & " 4 " \n1/ 2 * 1/3 = 1/6\n\n● Part 3\n19 / 20 - 1 / 6 = ( 57 - 10 ) / 60 = 47 / 60 = 0.783 { bar over 3 } \n\nGood Luck Darling ♣
55103
Since y = 9 when x=4,\nthen y=9/2 when x=4/2=2\n\nNo calculations required.\n\nBut if you must, this is done by Solving for k when x=4 and y=9\n9=4k+8\n4k=9-8\nk=1/4\n\nUsing k and x=2, then, y= 1/4(2) +4\n                       y= 1/2+4 =9/2