7+6i divided by 10+i?
968466
The key is that with division, you need to multiply the top and bottom by the conjugate of the denominator.  The conjugate is like this:\n\nThe conjugate of a+bi is\na-bi.\n\nIn this case, the denominator is 10+i.  The conjugate will be 10-i.\n\n(7+6i)/(10+i)=\n\nMultiply by the conjugate\n\n((7+6i)(10-i))/((10+i)(10-i))=\n\nSimplify, but remember that -i*i = -(-1) = 1.  So if you have an i and -i, the result will be positive. (treat i like a variable-use foil to expand)\n\n(70+53i+6)/(100+1)=\n\nSimplify\n\n(76+53i)/101\n\nYour real part will be 76/101, your imaginary part will be 53(i)/101
703752
simply subtract 7 from both sides. This leave you with\n\nx<_3
175474
1+2+3+4+5+6+7+8+9+10+..........+....
861532
I think you left something out. If it is the sum of you must have two things to add. If it is the sum of 7 AND a number it would be \n7+x
37603
If we were to want to go to 10\n(1+2+3+4+5+6+7+8+9+10=55)\nthen you could use the following idea:\n1+9 = 10\n2+8 = 10\n3+7 = 10\n4+6 = 10\n5+0 = 5\n10+0 = 10\nOr \n1+2+3+4+5+6+7+8+9+10= 55\nOr (10/2)*10 + 10/2 = 55\n\nSo unless my math is wrong, you could do the same for 10000:\n1+9999 = 10000\n2+9998 = 10000\nEtc…\nOr\n(10000/2)*10000 + 10000/2 = 50,005,000\n\nThis is more commonly written out\n(n+1)*n/2
804813
(y+1)(y-7)\n=y^2-6y-7
1166133
Multiply both sides by R+r\nI(R+r) = E\nDistribute the I\nIR + Rr = E\nSubtract IR form each side\nRr = E - IR\nDivide both sides by R\nr = (E-IR)/R
159634
well lets seeee.... 1 + 3 = 4 and 4 + 6 = 10, so next would be 10 + 9 = ... well i'll just leave that part to you!!
67769
Divide 8 into 3\n.375
860921
To show you how to do it yourself..\n\nfor 8/7: 7 "goes into" 8 once so separate it as 7/7 + 1/7, 7/7 becomes "1" and "1/7" remains as a fraction.\n\nTherefore "8/7" becomes "7/7 + 1/7" which becomes 1 1/7.\n\nSimilarily, 38/6 becomes 36/6 + 2/6 which becomes 6 2/6.\n\nYou get to do the rest.... happy learning!
747696
The only way I can think to achieve this "trick" would be to take the roman numeral XII\n\nIf you split it in two along the horizontal, you get:\n\nVII\n^II\n\nThe top looks like roman numeral VII = 7.\n\nThus 12/2 = 7  :)
558121
i=i+2 (i=4)\ni++ (i=5)\ni=5
537135
6+3 = 9\n5+4 =9\n10-1=9\n9x1=9\n27 divided by 3 =9\n8+1 =9
1116253
just divide both sides by 0.015...\n\nand you will get...\n\n566.66 \n\nwith a repeating six.
1116389
$10,000^(1+(.068/10))^(27*10)=\n$62,325.51
668527
Using Roman numerals!  Twelve would be\n\nXII\n\nIf you cut that in half using a horizontal line, the top half looks like VII, which is 7.
876876
6 * [6*(5/6 - 1/6)]\n6 * [6*(4/6)]\n6 * 4\nTough.