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  • 29-10-2019
  • Mathematics
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Twice the sum of -4 and a number is the same as the number decreased by 7/2

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a5904640
a5904640 a5904640
  • 29-10-2019

2.(-4 + x) = x - 7/2

-8 + 2x = x - 7/2

2x - x = -7/2 + 8

x = 9/2

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