blsweitzer blsweitzer
  • 22-09-2017
  • Mathematics
contestada

Twice the difference of a number and 4 is equal to three times the sum of the number and 7. find the number.

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texaschic101
texaschic101 texaschic101
  • 22-09-2017
2(x - 4) = 3(x + 7)
2x - 8 = 3x + 21
-21 - 8 = 3x - 2x
-29 = x <==
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