solve and answer the equation 12y=2y+40?
925662
12y=2y+40  subtract 2y from each side\n10y=40  divide by 10\ny=4
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?
934203
y + 2y - 10 = 2y + 2\n3y - 10 = 2y + 2\n3y = 2y + 12\ny = 12
724639
2x-4y = 3.8\n3x - y = 17.7\n\nmultiply second equation by -4 so that when u add them both u will cancel the y's...\n2x-4y = 3.8\n-12x+4y = -70.8\n\nnow add them..\n\n-10x = -67\n     x = 67/10 = 6.7\n\nnow plug this x in for any one of the original equations and solve for y....\n\n2(6.7) - 4y = 3.8\n\n13.4 - 4y = 3.8\n-4y = -9.6\n   y = -9.6/-4 = 2.4\n\nso the solution is (6.7,2.4)
745939
Double the second equation and subtract the first from it:\n\n8x + 8y = 120\n1x + 8y = 60\n-----------------\n7x = 60\nx = 60/7\n\n60/7 + 8y = 60\n8y = (420 - 60) / 7 = 360/7\ny = 360/56 = 45/7
681683
x-2y=8\nx=8+2y\n\n3x-2y=12\n3(8+2y)-2y=12\n24+6y-2y=12\n24+4y=12\n4y=12-24\n4y=-12\ny=-3\n\nx-2y=8\nx-2(-3)=8\nx+6=8\nx=8-6\nx=2
409430
12x - 16y = 8\n9x - 12y = 6\n\n12x - 16y = 8\n-16y = -12x + 8\ny = (3/4)x - (1/2)\n\n9x - 12y = 6\n-12y = -9x + 6\ny = (3/4)x - (1/2)\n\nANS : 3.) (t,(3/4)t - (1/2))\n\nThats if i understand you correctly.
815517
OK First you take out the common factor which is y. After you have done that.you have (y^2-12y+36). After this, it becomes simple factoring. The answer is\ny(y-6)(y-6)\nor also known as y(y-6)^2
737307
4y+2/6=21\n4y + 1/3 = 21\nAll times 3\n12y + 1 = 63\n12y = 62\ny = 62 / 12 = 5 1/6\n\nTh
836116
Let x and y be your numbers.  Your equations, therefore, are the following:\n\nx+y = 72\nx-y = 12\n\nDo you need to actually solve for x and y as well, or just set up the equations?  If you also need to solve, then write your two equations one on top of the other, then subtract to get an equation in one term only:\n\nx + y = 72\nx - y = 12\n----------------\n0x + 2y = 60\n\nSo, 2y = 60, which means y = 30\n\nNow substitute y=30 into one of the original equations to solve for x:\n\nx + y = 72\nx + 30 = 72\nx = 72  30 = 42\n\nSo your two numbers are 30 and 42\n\n~ ♥ ~
846702
-x + 2y = 18\n x + 8y = -38\n\nadd up these two lines\n\n0x+ 10y = -20\ny= -20/10 = -2\n\nx + 8(-2) = -38\nx - 16 = -38\n\n\nx=-22\ny=-2
753426
X2   5x - 4y = 1\n10x -8y =2\n-10x + 8y = -3\n-------------------------\n  0=-1                NO SOLUTION
759871
These are really hard to solve; you have to square both sides twice.\n\n(sqrt [19y - 20] + 3)^2 = (5sqrt[y-2])^2\n\n19y - 20 + 6 sqrt (19y - 20) + 9 = 25 (y-2)\n\n19y - 11 + 6 sqrt (19y-20) = 25y - 50\n\n(subtract 19y; add 11 to both sides)\n\n6 sqrt(19y - 20) = 6y - 39\n\ndiv both =sides by 3:\n\n2 sqrt(19y-20) = 2y - 13\n\nsquare both sides again:\n\n4 (19y - 20) = (2y - 13)^2 \n\n78y - 80 = 4y^2 - 52y + 169\n\nsubtract 78y; add 80 to both sides\n\n4y^2 - 140y + 249 = 0\n\n\nA huge quadratic to solve, you are on your own from here.  Are you sure you typed in the problem right?
334051
from x + 8y = 2\nwe get x = 2 - 8y\nsubstituting in the other equation, we get\n3( 2 - 8y ) + 3y = 2\n=> 6 - 24y + 3y = 2\ncollecting like terms:\n=> -21y = -4\n=> y = 4/21
332716
8y=-5x+48\n/\n8\n\ny=(-5/8)+6\n\nAKA: solve for y.
915236
0.08x +0.7y = 37.4\n0.06x + 0.05y = -0.7\nMultiply first equation by 600 and second equation by -0.800:\n48x +420y = 22,440\n-48x -.40y = 560      {Equation I}\n   380y=23000\ny= 60 10/19\nSubstitute y = 60 10/19 into Equation I to find x.\nThe equations are independent.
70526
=((-4y)^2)/(10y-5)= (16y^2)/(10y-5)\nand if the equation is equal to zero then y=4i