(y  - 9) - (y  + 4) =  4y
213100
answer at \n\nwww.a729.piczo.com
392716
4x+2y=8\n\nSubtract the 4x to the other side to get\n\n2y= -4x + 8\n\nDivide the 2 on all sides to get:\n\n2y(/2)= -4x(/2) + 8 ( /2)\n\nYour final answer will be:\n\ny= -2x + 4\n\n4= y intercept and -2 equals the slope.
94980
2x = 3y - 4y + 5 - 2\n2x = -y + 3\n2x + y = 3
118720
Start by multiplying each fraction and the answer by 6\n\n\n4y - (y + 3) = 36\n4y - y - 3 = 36\n3y - 3 = 36\n3y = 39\ny = 13
156951
if you add your two equations you get 3y^2=27\n\nthat is y^2 = 9\n\ni.e y = ± 3\n\nthen since x^2 = 13 - y^2\n           x^2 = 4\n           x = ± 2\n\nhence there are four soltions\nx=2 y=3, x=-2 y=3, x=2 y=-3, x=-2 y=-3
492988
x + y = 7\nx - y = 9\n\nAdd the two equations:\n\n2x = 16\n x = 8\n\nSubstitute into either of the equations:\n\nx + y = 7\n8 + y = 7\n  y = -1\n\nor x - y = 9\n    8 - y = 9\n        y = -1
177377
(4x + 5y)(2y^2)\n8y^3 + 10y^3\n\na.)\n(4x + 2y^2)(5y)\n20xy + 10y^3\n\nb.)\n(4x) + (5y)(2y^2)\n4x + 10y^3\n\nc.)\n4x + (5y + 2y^2)\n4x + 5y + 2y^2\n\nd.)\n(2y^2)(4x + 5y)\n8xy^2 + 10y^3\n\nSo the answer is d.) (2y^2)(4x + 5y)\n\nI just did the math out.
645037
12x + 4y = 8\n(d/dx) * (12x + 4y = 8)\n12 + 4dy/dx = 0\ndy/dx = -12/4\ndy/dx = - 3
452641
let the first number be x and second be y\nx= 9+5y\n\nyou are also given that x+y =75 ...from here you know that y=75-x\n\nsubstitute this into the previous equation and you get:\nx= 9 +5(75-x)\nx= 9 + 375 - 5x\n6x=384\nx= 64\n\nso ur numbers are 64 and 11\n\n64 is 9 more than 5 times 11...means 64 is 9 more than 55...which is true\n\nso you almost got it! Great job!
467590
y^2-4y-5=(y-5)(y+1) not irreducible\n6t^2+5t+2 is irreducible
369888
Even though somebody told you the answer, I'm going to explain how to do it so you know on other problems. \n\n\n4(3y+2m+1)=\n\nYou have to take the number outside of the parenthesis, and multiply it to all the other numbers.\n\nFirst you do 4 x 3y, because 3y is the first term. \nThat comes out to 12y. \n\nThe next one is 2m, so 4 x 2m= 8m\n\nThe last term is 1, so 4 x 1=4.\n\nAdd up all the numbers and the answer comes out to 12y+8m+3\n\nApply the same method to the 2nd problem\nHope this helps!
425241
If x is 2, then 8x is 16.\n\nIf y is 3, then 4y is 12.\n\n16-12 is 4.  :o)
521329
2x + 4y = -6\nX - 3y = 7 multiply by two\n\n2x + 4y = -6\n2x - 6y = 14\n{subtract equation 2 from equation 1}\n\n2x - 2x + 4y - (-6y) = -6 - 14\n10 y = -20 divide by 10\ny = -2\n\n\nplug into a equation \n2x - 6(-2)  = 14\n2x + 12 = 14\n2x = 2\nx = 1\n\nx = 1, y = 2
213610
This is an algebra problem.\n\nX + Y + Z = 98\nX + Y = Z + 2\nY = X + 4\n\nSolve for X and you should be able to figure out the rest.
382968
It's true.\nThe answer is indeed y = 0.\nYou can find this by dividing each side by -4.\n-4y = 0\n-4y/-4 = 0/-4\ny = 0\nRemember that zero divided by any nonzero number is always zero.
197253
((y^2 - 16)/(y^2 + 4y))/((y^2 - 7y + 12)/(y^2 - 6y + 9))\n\n(((y - 4)(y + 4))/(y(y + 4)) / (((y - 4)(y - 3))/((y - 3)(y - 3))\n\n((y - 4)/y) / ((y - 4)/(y - 3))\n\n((y - 4)/y) * ((y - 3)/(y - 4))\n\n((y - 4)(y - 3))/(y(y - 3))\n\nANS : (y - 3)/y
183805
x=0,2,3,4 and y=1,-1,0,3