sink2001 sink2001
  • 06-05-2017
  • Mathematics
contestada

if 4+2(3x-4)=8, then 3x-4 equals

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irspow
irspow irspow
  • 06-05-2017
4+2(3x-4)=8  subtract 4 from both sides

2(3x-4)=4  divide both sides by 2

3x-4=2
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PHDFlopper
PHDFlopper PHDFlopper
  • 06-05-2017
4+2(3x-4)=8
4+6x-8
6x-4=8
6x=12
x=2

Plug in 2 for x:
3(2)-4
6-4
2
Answer Link

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