anonymous
  • anonymous
5 = –(–z + 3) Medal and fan.
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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shreenithaa
  • shreenithaa
what do u need
anonymous
  • anonymous
5 = –(–z + 3)
shreenithaa
  • shreenithaa
the answer to x?

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More answers

shreenithaa
  • shreenithaa
sorry z
anonymous
  • anonymous
Yes.
haleyelizabeth2017
  • haleyelizabeth2017
First, multiply -z and 3 by -1 :)
anonymous
  • anonymous
Don't I need Z first, though?
shreenithaa
  • shreenithaa
first use the distributive property to distribute the negative sign
haleyelizabeth2017
  • haleyelizabeth2017
No...distribute negative one first. What do you get when: \(-1*-z\) and \(-1*3\) ?
anonymous
  • anonymous
Would that make it -5 + 3? (Sorry, I'm kind of bad at math.)
haleyelizabeth2017
  • haleyelizabeth2017
So...two negatives equal a positive. When you multiplied -z by -1, you get z.
haleyelizabeth2017
  • haleyelizabeth2017
-1*3 is...
anonymous
  • anonymous
Uggh, I'm confused 3:
haleyelizabeth2017
  • haleyelizabeth2017
lol -1*3 is -3 :) so what we have now is...: 5=z-3 Do you know how to isolate z now?
anonymous
  • anonymous
Move it alll the way to the right?
haleyelizabeth2017
  • haleyelizabeth2017
no..lol add three to both sides. The threes will cancel on the right so all you're left with is z on the right. 5=z-3 +3 +3 z=5+3
haleyelizabeth2017
  • haleyelizabeth2017
Simplify and you're all set.

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