sbjnefamily sbjnefamily
  • 12-09-2016
  • Mathematics
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2x + 4 = - ( -7x + 6 )

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emmye
emmye emmye
  • 12-09-2016
2x + 4 = - (-7x + 6)
2x + 4 = 7x - 6
10 = 5x
2 = x
x = 2

First, you distribute the -1 that is outside your (-7x + 6). Next, you add the six over to 4 which equals 10. At the same time, subtract the 2x over to the 7x which equals 5x. To get x alone you must divide by 5. When you divide 10 by 5 you get 2. Therefore, x = 2.
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