help with 2 math problem.1st correct answer gets the points?
921810
2(4x+7)=2x-4\ndistribute\n8x+14=2x-4\n-2x from feach side\n6x+14=-4\n-14 from each side\n6x=-18\ndivide by 6\nx=-3\nand the next one\n-2(18-3y)=7y+2y\ndistribue and add light terms\n-36+6y=9y\nsubtract 6y from each side\n-36=3y\ndivide by 3\n-12=y\n:) welcome
1076304
(1) 1.3\n(4) 4\n(5) Right\n(6) 0\n(7) 0\n(8)0\n(9)12
699429
c'mon dude, these are easy.\n\nAdd second to first.\n\n2x = 2, x = 1, therefore y = -2.
1075653
Here you go! I hope this helps you out. I copied what some other guy said, he was mean about it.  :)\n\nArt B = 2x3 = 6 points\nHist A = 3 x4 = 12 points\nSci C = 4x2 = 8 points\nMath B = 3x3 = 9 points\nLab A = 1 x 4 = 4 points\n\nTotal points = 39\nTotal credits 13\n39/13=3.0\nGPA = 3.0
1082511
I think your question have a typo.  There are three variables and I am not sure which one are you trying to solve for.
572318
1) Let x:the length , y:the width of the picture.Note:x,y>0\nThe first equation we have is : x=y+4 (1)\nThe combined area has the length is x+4,the width is y+4       \nso the second equation we have is: (x+4)*(y+4)=140 (2)\nReplace (1) in (2)-->(x+4)x=140--> x^2+4x-140=0 -->x=10 or x=-14 .since x>0 then x=10(cm)-->y=6(cm).\n2)  Let x: the length,y:the width.Note:x,y>0\n    The first equation we have is x=y+3 (1)\n    The second is: the area=x*y=550 (2)\n    Replace (1) in (2)--> (y+3)y=550--> y^2+3Y-550=0 --> y=22 or y=-25.Since y>0 then y=22(cm)-->x=25(cm)\n3)  Let x,y:two positive integers.Supposed that x>y>0 \n    we have two equation:x*y=240(1) and x=y+8(2)\n    Replace (2) in (1)-->y(y+8)=240--> y^2+8y-240=0 -->y=12 or y=-20.Since y>0 then y=12-->x=20.
1161571
these are the correct answers, just took this test\n1.D\n2.C\n3.D
873410
1.  (x + 9)(x - 9)\n2.  (t + 2)(t - 2)\n3.  (b + 12)(b - 12)
849885
I understand your frustration in receiving no Answer yet to this question, but since I do not have any direct knowledge of how to perform the calculation(s) you need ... I hope the link below serves you well.  It appears to explain the mathematics behind all the concepts you mention.
646947
1. A & B cross  -  2\n2. A returns    -  1\n3. C & D cross  -  10\n4. B returns    -  2\n5. A & B cross  -  2\n\nTotal minutes: 17\n:)
729870
Answer 1:\n-5r = 55\nr = 55/-5\nr = -11\nChecking:\n-5r=55\n-5 (-11) = 55\n55 =55\n\nAnswer 2:\n2/8g=-14\n8g = -14/2\n8g = -7\ng = -7/8\nChecking:\n2/8g=-14\n2/8(-7/8) = -14\n2/-7 = -14\n-7 = -14/2\n-7 = -7
1169918
1 ->25000\n2cm ->2*25000cm=50000cm=500m\n\nans: b:500m
941498
1)2(x+5)=-3x\n2)-5 and 11
879458
Answer 1:\nf(6)= 726\nAnswer 2:\nyes\n\n(If you ask it again I promise not to answer.)
949969
Problem #1:\n2^(3x) = 4\n\nSince you have powers of 2, I would take the log base 2 of both sides:\nlog[2](2^(3x)) = log[2](2²)\n3x = log[2](2²)\n3x = 2\nx = 2/3\n\nProblem #2:\n5/6x = 10\n\nMultiply both sides by x\n5/6 = 10x\n\nDivide both sides by 10:\n5/60 = x\n\nReduce:\nx = 1/12\n\nYour answers are:\n2/3 and 1/12
511300
sorry cant help u there......but thanks for the two points
318521
two plus two =..... 2 points for me... THNX