anonymous
  • anonymous
13+4a=9 please show steps also
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Hi, you need to do the same procedure as in the last exercise.
anonymous
  • anonymous
yes
anonymous
  • anonymous
substract 13 from both sides of the equation, and then divide both sides of the equation by 4.

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anonymous
  • anonymous
but.. idk really how..
anonymous
  • anonymous
look: \[13+4a=9\]
anonymous
  • anonymous
\[13-13+4a = 9-13\]
anonymous
  • anonymous
\[4a=-4\]
anonymous
  • anonymous
\[\frac{4a}{4}=\frac{-4}{4}\]
anonymous
  • anonymous
a = -1
anonymous
  • anonymous
im starting to see this now
anonymous
  • anonymous
i did.

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