meesy5563 meesy5563
  • 05-05-2015
  • Mathematics
Answered

7+4u=70-3u
What is U

Answer :

brookegallagher
brookegallagher brookegallagher
  • 05-05-2015
[tex]7+4u=70-3u \\ 7+4u+3u=70-3u+3u \\ 7+7u=70 \\ 7-7+7u=70-7 \\ 7u=63 \\ 7u/7=63/7 \\ u=9[/tex]
u=9 is your answer.
Hope this helps!
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cclemeno cclemeno
  • 05-05-2015
7+4u= 70-3u
add 3u to both sides
7+7u=70
subtract 7 from both sides
  7u=63
divide both sides by 7
   u= 9

hope this helps

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