what is the answer to (3,7).y=3/4x=1?
610750
Can you rephrase the equation? Is it y = 3/4x when y =1? Is the (3,7) a point where you are trying to determine whether it falls on the graph of the equation?
703761
4x² -x = 3\n4x² - x - 3 = 0\n(4x + 3)(x - 1) = 0\nx = -3/4, x = 1
920287
Use substitution.\n\n7x - 3y = 13\n\n7x - 3(2x-3) = 13\n\n7x - 6x + 9 = 13\n\nx + 9 = 13\n\nx = 4\n\nThen go back and plug in to find y\n\ny = 2x - 3\n\ny = 2(4) - 3\n\ny = 8 - 3\n\ny = 5\n\n(4,5) is the answer.
683485
It's easy.\nYou have 2 linear equation:\n3x - y = -7  -> equation  1\nx + y = -9   -> equation  2\n\nNote that in equation 2 you can rewrite as follow:\n  x = -9 - y \nBy simply moving the y to the other side.\nSo you know what x is in terms of y.\n\nIn equation 1 you have:\n      3x - y = -7  \nBut you know x now in terms of y and you can SUBSTITUTE to equation 1.\n\n    3(-9 - y) - y = -7\nSolving and expanding the multiplication you have\n    3*(-9) -3*y - y = -7\n    -27 - 4*y = -7\n         -4y  = -7 + 27\n           y  = -5\nSo you know y.\n\nIf you want to know x, you SUBSITUTE back to equation 2, since there you know x in terms of y.\nSo:\n    x = -9 - y \n    x = -9 - (-5)\n    x = -4\n\nChecking the answers by SUBSTITUTING back: \n    x = -4\n    y  = -5\n\n3x - y = -7  -> equation  1\n3(-4) - (-5) = -7  \n-12  + 5 = -7   (correct)\n\nx + y = -9   -> equation  2\n-4 + (-5) = -9 (correct)\n\nHope you understand the process :)
926612
4x + 3 = 17\nSubtract 3 from each side\n4x = 14\nDivide both sides by 4\nx = 14/4\nReduce\nx = 7/2
432171
3(3x + 4) = 66\n3(3x) + 3(4) = 66\n9x + 12 = 66\n    -12   -12\n9x = 54\n9x/9 = 54/9\nx = 6
1120847
We have 3X+4Y = 16 (1)\nY - 3X = 11 (2)\n\nAdding (1) and (2)\n\nY + 4Y = 27\n\nor\n\n5Y = 27 --> Y = 27/5 = 5 + 2/5 = 5.4\n\nreplacing in (2)\n\n27/5 - 3X = 11\n\ntherefore\n\nX = (11-5.4)/(-3) = -5.6/3
851375
first subtract 2x from both sides to get:\n\n-7=3x+7  \n\nthen add 7 to both sides to get:\n-14=3x\nx=-14/3 or -4 2/3
802716
Let x = the number you are looking for.\n\nSo, 3x + 7 = 52, which is easily solvable for x as follows:\n\n3x + 7 = 52\n\n3x = 45\n\nx = 15\n\n~ ♥ ~
594745
ANSWER: y = 2x/3 - 4\n\nSOLUTION:\n\n2x-3y = 12\n\n1) Isolate y on one side of the equation:\n\n2x - 12 = 3y\n\n2) Then, divide both sides of the equation by 3:\n\n2x/3 - 12/3 = 3y/3\n\n3) If you cancel out common factors, your final answer would be reduced to:\n\n2x/3 - 4 = y
245933
(4x+3)(x-1)=0\n\nx= -3/4, x=1
269310
Get one variable by itself.  If you choose to get x alone, you would do it like this:\n\n4x-3y=10\n  +3y +3y\n4x=3y+10\n(1/4)(4x)=(1/4)(3y+10)\nx=(3/4)y+(5/2)\n\nThen substitute the above x-value in for x in the second equation.\n\n2x+3y=4\n2[(3/4)y+(5/2)]+3y=4\n(3/2)y+5+3y=4\n      -5    -5\n(9/2)y=-1\n(2/9)(9/2)y=(2/9)(-1)\ny=(-2/9)\n\nSo if y=(-2/9), substitute that in for your original equation to find x.  Hope that aligns with the answer in your book...
516161
x-y+3x-5y+3=0\n\n4x - 6y + 3 = 0\n\n4x + 3 = 6y\n\n2x/3 + 1/2 = y
80315
If this is an algebra problem, they probably mean x/3 = (x+8)/7\n\nCross multiply to get 7x = 3x + 24 \n\nSubtract 3x from both sides to get 4x = 24\n\nDivide both sides by 4 to get x = 6\n\nCheck:  6/3 = 2; (6+8)/7 = 14/7 = 2
523276
(3,10) and (7,-1)\n\nm = (-1 - 10)/(7 - 3)\nm = (-1 + (-10))/4\nm = (-11/4)\n\n(3,10), m = (-11/4)\n10 = (-11/4)(3) + b\n10 = (-33/4) + b\n40 = -33 + 4b\n73 = 4b\nb = (73/4)\n\nANS : y = (-11/4)x + (73/4)
1153750
7xe^y + 3x^3 = 5x^4\n\n=> 7e^y + 7xe^y (dy/dx) + 9x^2 = 20y^3 (dy/dx)\n\n=> 7xe^y (dy/dx) - 20y^3 (dy/dx) = -7e^y - 9x^2\n\n=> (dy/dx)(7xe^y - 20y^3) = -7e^y - 9x^2 \n\n=> dy/dx = (-7e^y - 9x^2)/(7xe^y - 20y^3).
386537
4y=3x\ny=3x/4\ny=3/4 x\n\nGet it?