6x-4y=9 for y in terms of x?
404020
6x-4y=9\n=> 4y=6x-9\n=> y=(6x-9)/4\n\nhere is ur answer\n\nall d best 4 ur home work
433587
This is a simple linear equation. Sole for y.\n\ny=(11/9)-x.\nThis is quickly put in the calculator and graphed.\nThere are infinetly many solutions to this equation since there are no limits on the domai.\n\nTo prove this:\n\nYou use substitution.\nSolve for x    x=(11/9)-y\nThen, substitute this for x in the original equation.\n9((11/9)-y)+9y=11\nDistribute the 9\n11-9y+9y=11\nAn identity 11=11 demonstrates that there are infinetly many solutions.
469648
2x - 6y = 37\n-6y = -2x + 37\ny = (2/6)x - (37/6)\ny = (1/3)x - (37/6)
169029
first 4x = 6x-2x\n\nthen answer is:  (x-2)(x+6)
43809
x - y = 9\n-x       -x\n  (- y = 9 - x) times -1\n     y = x - 9\n\n x   = y + 11\n-x -y -y      -x\n (-y = -x + 11) times -1\n  y = x - 11
298404
4x+y=10\n\n6x-y=20 \n+y   +y\n_______\n6x = 20+y\n-20  -20\n6x-20 = y\n\nreplace 6x-20 in for y with the other equation\n\n4x+(6x-20)=10\n10x-20=10\n+20     +20\n10x=30\nx=3\n\nnow plug in 3 in the equation as x\n\n4x+y=10\n4(3)+y=10\n12+y=10\ny=-2\n\nso x=3 and y=-2\nI think\n_____________________________\nAnother way to do it is get y's alone and set them equal\n6x-20=10-4x\n10x-20=10\n10x=30\nx=3\nand then just plug in like what I did b4
124621
x-4y=-20\n=> -4y=-x-20\n=> 4y=x+20\n=> y=x/4+5 Ans.\nThanks.
146086
2x+y=6 => y=6-2x \n3x+y=1 => 3x+(6-2x)=1 => x+6=1 => x=-5\ny=6-(2*-5) => y=16\n\nx=-5\ny=16
461929
6x=2y\ndivide both sides by 2\n3x=y\nrewrite\ny=3x
70526
=((-4y)^2)/(10y-5)= (16y^2)/(10y-5)\nand if the equation is equal to zero then y=4i
425538
x=4-y  ,  x-2y=10:\n\nX - 2y = 10                   \n(4-y) - 2y = 10               \n4 - y - 2y = 10                \n4 - 3y = 10                    \n(4-4)-3y = 10-4\n-3y = 6                        \n-3y/-3 = 6 / -3               \ny = -2                        \n\n\nX = 4 - Y\nX = 4 - (-2)\nX = 4 + 2\nX = 6\n\nAnswer\n= (X,Y)\n= (6,-2)
612878
xy = 4 then y = x/4\n\nx^2 +  4y^2 = 20\nx^2 + 4 x^2/16 = 20\nx^2 + x^2/4 = 20\n4x^2 + x^2 = 80\n5x^2 = 80\nx^2 = 80/5\nx^2 = 16\n\ntherefor\nx = 4\nthen \ny=1
837762
ln (x^9y^6) = ln (x^9) + ln (y^6) = 9 ln(x) + 6 ln(y).\n\nSince u = ln(x) and v = ln(y), we obtain\nln (x^9y^6) = 9u + 6v.
828595
Let x and y be the two positive integers, then\nxy = 64 and x = 4y\nReplace x with 4y in the first equation.\n(4y)y = 64\n4y^2 = 64\nDivide both sides by 4\ny^2 = 16\nTake the square root of each side\ny = 4 (You can ignore y = -4 because you are looking for positive integers)\nIf y = 4, then x = 4(4) = 16\nAnswer: 4;16
729363
9x-4=124\n9x=128\nx=14.22
484451
iso late the y by subtracting 6x from each side, so you are left with 2y = 9-6x, then divide each side by the coefficient of y (2) making your equation: y=9/2-3x...the y intercept of the line is 9/2 and the slope is -3 (so start at the point on the graph 9/2, then move 3 squares down, and over to the right one)
775275
2y^3 + 2x^3 - 9xy = x^5\n\nBy implicit differentiation\n\n6y² dy/dx + 6x² - 9y - 9x dy/dx = 5x^4\nSo 3y(2y - 3) dy/dx = 5x^4 - 6x² + 9y\n\nSo dy/dx = (5x^4 - 6x² + 9y)/[3y(2y - 3)]