adanmaryortega7 adanmaryortega7
  • 13-09-2018
  • Mathematics
contestada

Find x in ecuation 4x+30=40

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katethekat2005
katethekat2005 katethekat2005
  • 13-09-2018

2.5


4x+30=40

   -30  -30

4x=10

/4   /4

x=2.5

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spradlinalexis spradlinalexis
  • 13-09-2018

4x+30=40

What you would do is subtract 30 from 30 and 40 which would give you 10 and then what you would do is divide the 10 by 4 to get 2.5.  Therefore X=2.5.  And to check your work you would plug in 2.5 in place of X and the answer to that equation should be 10.


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