anonymous
  • anonymous
Solve 7W= -21. A. 147 B. -147 C. 3 D. -3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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NotTim
  • NotTim
ok, so how do you isolate w?
NotTim
  • NotTim
and, what you do to one side, you have to do to the other
anonymous
  • anonymous
The only problem i have with this one is, if you multiply a positive by a negative, is it going to become a negative or stay a positive?

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anonymous
  • anonymous
a neg time positive is a neg. and pos times pos is pos, and a neg times neg is a pos
NotTim
  • NotTim
well, we know that 2 positives make a positive, and 2 negatives make a negative. one positive and one negative makes a negative then
anonymous
  • anonymous
If you move the 7 to the other side what do you get?
NotTim
  • NotTim
not "move", just isolate w
anonymous
  • anonymous
its the exact same thing
NotTim
  • NotTim
its not a good way to think of it, in higher level classes

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