Ughmega
Ughmega Ughmega
  • 04-09-2015
  • Mathematics
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X-(4x-7)=5x-(x+21)
This is for my math class on homework

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Emily2020279 Emily2020279
  • 04-09-2015
x-(4x-7)=5x-(x+21)
x-4x+7=5x-x-21
-3x+7=4x-21
      -7      -7
-3x=4x-28
-4x  -4x
-7x=-28
/-7  /-7
x=4
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