cindy
  • cindy
simplify -3 (7w) + 7 (3w) v v -21w + 21w 42w is that correct
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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angela210793
  • angela210793
=0
anonymous
  • anonymous
No. The answer is 0 (zero). - x + x = 0 (where x is any number) Because - x + x is same as +x - x which is same as x - x which is ZERO.
angela210793
  • angela210793
rahulg has explained it

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cindy
  • cindy
can youshow m th steps
angela210793
  • angela210793
u got -21w and 21w....so if u sum two opposite numbers u get 0
cindy
  • cindy
sits like this -3 (7w) + 7 (3w) v v -21w + 21w =0
angela210793
  • angela210793
yes that's it :)
angela210793
  • angela210793
whenever u have two opposite no.s their sum is 0

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