This is my last question guys, what is 9y - 6x = 15?  Like I said, I get no help at school.?
356346
This is an equation for a straight line.  For any value of x, there is 1 value of y that solves the equation.
924033
Well, in order to solve it, you have to set it equal to something, because as of right now, it's just a random algebraic expression that means nothing.\n\nIf you set it equal to zero however...\n\n14c/15 + 7/17 = 0\n14c/15 = -7/17\n14c = -105/17\nc= -15/34
928591
x^2-6xy+8y^2\nx^2-6xy+9y^2-9y^2+8y^2\n(x-3y)^2-y^2\n(x-3y+y)(x-3y-y)\n(x-2y)(x-4y)\n\naliter\nx^2-4xy-2xy+8y^2\nx(x-4y)-2y(x-4y)\n(x-4y)(x-2y)
302953
5y(y^2 - 5xy - 14x^2)\n\nIf you're expanding, you get:\n\n5y^3 - 25xy^2 - 70yx^2\n\nIf you're factoring, you get:\n\n5y(y^2 + 2xy - 7xy - 14x^2)\n= 5y( y(y+2x) - 7x(y+2x) )\n= 5y(y + 2x)(y - 7x)
275027
Solve for y in the first equation and then substitute into the second equation.\n4x + 2y = 0  Subtract 4x from each side\n2y = -4x  Divide both sides by 2\ny = -2x\nSubstitute -2x for y in the equation 6x + 3y = 0\n6x + 3(-2x) = 0\n6x - 6x = 0\n0 = 0\nThis means there are infinitely many solutions of the form (x,y) where x is any real number and y = -2x.\nTherefore, the answer is\n(x,-2x), where x is any real number.
986058
Wow I'm not even sure how to do this, but I would think Y would = -15
904579
ok sorry, i'll work it out this time\n\n3x-6y=-30\n-8x+20y=104\n\n(8)(3x-6y)=-30(8)\n(3)(-8x+20y=104(3)\n\n24x-48y=-240\n-24x+60y=312\n\n12y=72\n\ny=6\n\n3x-6(6)=-30\n\n3x-36=-30\n\n3x=6\n\nx=2\n\ndoes that help?
1052653
Given 3x - 2y = 5, if you follow the suggestion in the first answer and multiply it by 2 you get\n\n6x - 4y = 10\n\nand if you add this and the second equation you get\n\n0x + 0y = 17 or 0 = 17, indicating that there is no solution to this simultaneous pair.  Why, you might ask - if you solve each equation for y you get\n\ny = 3x/2 - 5/2  and\ny = 6x/4 + 7/4\n\nThe coefficient of x in the second equation reduces to 3/2, so these equations have the same slope and are therefore parallel.
17351
The equation to solve looks like:\n\n(x+10)/(y+5)=3x/y\n\nwhere x is the numerator and y is the denominator.\n\nIf you cross multiply the expression, it yields:\n\n-15x+10y=2xy\n\nThere is no single answer to that problem. Any (x,y) pair that satisfies the equation above works. (y cannot be 0 or -5). x=2 indeed yields y = 5. x=1 yields y=15/8 etc...
233014
U R RIGHTT..HOW DID YA GET IT..PLZ CAN YA EXPLAIN..I'VE BEEN TRYING THIS PROBLEM FROM A LONGTIME.EVEN DE CALCULATOR SAYS ITZ "4"..I KNOW DE CALCULATORS WRONG TOO..PLZZ DO EXPLAIN IT TO ME ASAP
456921
assuming this is your question\n? / (5xy-9x) = (3+25y) / (9-5y)\n? = -x * (9-5y) * (3+25y) / (9-5y)\n? = -3x -25xy\n\nnow pay up
347487
-6-9x=-9x-4\n-6=-4.....\nno solution?? whats so hard to that?
214212
Hi, here's how ya do the problem:\n\n-5x+y=6\n\ny=5x+6 (move -5x over by adding the opposite)\n\nSo then you substitute it into the problem\n3x-2y=3 so that it looks like\n\n3x-2(5x+6)=3\n\nNext distribute the -2\n3x-10x-12=3\n\nand solve\n-7x-12=3\n-7x=15\nx=2.14\n\nThen you substitute 2.14 into either equation to figure out y\n-5(2.14)+y=6\n-10.70+y=6\ny=16.7\n\nHope this helps!
273731
120\n\n(6y-10)^2 = 36y^2 -60y -60y +100
543906
you have to get the y alone so what you will do is this\n2y=9-6x after that you have to get the y alone in order to put it in to the calculator so you have to do y=9-6x /2\nthis is what you put in to the graphing calculator. ALways get the y alone in order to graph it. Have fun
249211
Quickest way to solve it- take the first equation and square it, giving you \nx^2+y^2-2xy=25, while the other equation gives you\nx^2+y^2    =15\n\nSo xy = -5 (if that's not immediately obvious, take the difference of the two equations above and solve for xy).\n\nA word of advice on the side: there are certain quadratics that show up all the time on the SAT, such as (x+y)^2, (x-y)^2, and x^2-y^2. It's worth your while to become intimately familiar with these guys, so that you can expand and factor them immediately.
700945
from the equation you gave, we have\n\n9m +18 = -6M -42\nor, 9m+6m = -18-42\nor, 15m = - 60\nor, m = -60/15 = -4