damaniquejames damaniquejames
  • 23-01-2020
  • Mathematics
contestada

negative 3x plus 8 subtract negative 5x equals 21 subtract 8x

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jpyon3019
jpyon3019 jpyon3019
  • 23-01-2020
-3x+8-(-5x)=21-8x
-3x+8+5x=21-8x
2x+8=21-8x
10x=13
x=1.3
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