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tawandatorres
tawandatorres tawandatorres
  • 11-08-2016
  • Mathematics
Answered

3x+6y=30, 2x+7y=29 using elimination method

Verified Answer :

Anonymous Anonymous
  • 11-08-2016

Solutions 

----- Solve using Elimination 

\(3x+6y=30 2x+7y=29\) 

\(6x+12y=60 2x+7y=29\) 

\(6x+12y=60 6x+21y=87\) 

\(-9y=-27\) 

\(y=3\) 

Substitute y=3 into any of the two equations above 

\(6x+12*3=60\) 

\(6x+36=60\) 

\(6x=60-36\) 

\(6x=24\) 

\(x= 24 / 6\) 

\(x=4\) 

\(x=4 y=3\)

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