a=1/2  b=-4  c=0.04\n\n1.abc=\n2.a+b+c=\n3.a-b-c=\n4.1/ab=\n5.a+b/c=\n6.ab+c=
199401
1.\nabc\n= (1/2)(-4)(.04)\n= (-2)(4/100)\n= -8/100\n= -2/25
641940
Question 1:\n\n\n(-2)^2=(-2)(-2)=4\n4 * 4=16\n\n8(-2)=-16\n\n16-16=0\n\n3(-2)=-6\n0-6+6=0\n\nanswer:  zero\n\nQuestion 2:\n1/3* 3^6=3^5=243\n\nQuestion 3:\n30+825*30/1000+30*15/100\n=30+8,25 *3+4,5\n=59,25\n\n\nQuestion 4:\n598/100*100/26=23\n\nQuestion 5:\n4/5+3/4=16/20+15/20=31/20= 1,55
361896
x/ -4 + 5 = 1\nsubtract 5 from both sides\nx/ -4 = -4\nthen multiply both sides by -4\nx = 16
464050
[a b]\n[c d]\n\n1. E=[2 -2]\n ____[-1 2]= 2*2-(-1)(-2)=4-2=2\nE^-1=1/2 [2 2]  = [1   1]\n________[1 2] = [1/2 1]   \nYou multiply 1 divided by ad-cb and switch a and d and make b and c negative.\n\n2.  E= [1 -1]= 1+1=2\n______[1 1]\nE^-1=1/2 [1 1]   =   [1/2 1/2]\n________[-1 1] =  [-1/2 1/2]\n\nHope this helped!
55175
First equation is A + 2 = 2(B - 2)\nSecond equation is B + 2 = A - 2\n\nSolve the second equation for A and substitute it into the first:  B + 4 = A\n\nB + 4 + 2 = 2B - 4\nB + 6 = 2B - 4\n10 = B\n\nThen figure out A
594504
Given a+b+c=0\na+b=-c\nCubing both sides, we get\n(a+b)^3=(-c)^3\na^3+3a^2 b+3ab^2+b^3=-c^3\na^3+b^3+c^3=-3a^2 b-3ab^2=-3ab(a+b)=-3ab(-c)=3abc\nTherefore a^3+b^3+c^3=3abc
673383
ABC+ABD+C'D\n=ABC+ABD(C+C')+C'D\n=ABC+ABCD+ABC'D+C'D\n=ABC(1+D)+C'D(AB+1)\n=1ABC+1C'D\n=ABC+C'D
391531
4(4)+2x7-(5x4-15)\n4x4\n16+2x7-(5x4-15)\n2x7\n16+14-(5x4-15)\n5x4-15\n16+14-5\n16+14\n30-5\n25=answer\n\n(b)-2bc+c(c)\n-2b^2c^3=answer\n\n2x-2-5x4/4+3x-1\n-4-20/4+-3\n-4-5+-3\n-2=answer
413824
a)\n4x + 4y = -12\n-2x + 3y = 14\n\nDouble the second equation and add:\n4x + 4y = -12\n-4x + 6y = 28\n10y = 16\ny = 16/10\ny = 8/5\n\nThen solve for x:\nx + (8/5) = -3\nx = -3 - 8/5\nx = -4 3/5\n\nb) \n3x + 2y = 5\n2x - 3y = 3\n\nMultiply the top by 2 and the bottom by 3, then subtract:\n6x + 4y = 10\n6x - 9y = 9\n13y = 1\ny = 1/13\n\nThen solve for x:\n3x + 2(1/13) = 5\n3x + 2/13 = 5\n3x = 63/13\nx = 21/13\nx = 1 8/13
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4, 0, -2, -2, 0\n\nFigure it out! Don't be lazy!
397310
6+4x=3x+2\n4x-3x=2-6\n1x=-4\nx= -4
440356
1) 1/-4<m/-4\nmultiply both sides by negative 4 and flip the inequality sign\n4>m.\n\n2) -1/8< or equal to n/-32\nmultiply both sides by negative 32 and flip the inequality sign\n4 greater than or equal to n\n\n3) x/-12>1/4\nmultiply both sides by negative 12 and flip the inequality sign\nx<-3\n\n4) -1/2x< or equal to 2\nmultiply both sides by negative 2 and flip the inequality sign\nx> or equal to -4
444549
1) -2 x (2/5 -2p)\n    =4/5+4p            after multiplying through by -2\n\n2) 1 x (9/20 -p)\n    =9/20-p              after multiplying through by +1\n\nThis has started you off you should be able to solve now!
364400
x = (-b +/- sqrt(b^2 - 4ac))/2a\n\nwhere a= 1, b= -6 , c=8\n\nx1 = (6 + sqrt(36 - 32))/2 = 4\nx2 = (6 - sqrt4)/2 = 2
514869
y = 3/2 (-4) -2 = -12/2 - 2 = -6 -2 =  -8\n\n(x,y) = (4,-8)
1387
We have:\n(1) A+B=25\n(2) B+C=29\n(3) D=14\n(4) D=(A+C)/2\n\n(3) and (4) -> (5) A+C=28\n(1) + (2) - (5) -> 2*B=26 -> (6) B=13\n(1) and (6) -> A=12\n(2) and (6) -> C=16
302540
(4/x+2)+3-4/x = (2/x-3)+3-4/x\n5 = 2/x-4/x\nx(5) = x(2/x-4/x)\n5x = 2-4 = -2\n(5x)/5 = (-2)/5 = -0.4\nx = -2/5 = -0.4