jackie07
jackie07 jackie07
  • 24-04-2017
  • Mathematics
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what is x,y? using the substitution method

what is xy using the substitution method class=

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  • 24-04-2017
y= -7 and x=3  you do this by solving the problem with only one variable, then you use your answer from that (3) and then plug that in x's spot it should look like this 
-4(3) -3y=9 
then solve that 
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