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CarrabTandlitta
CarrabTandlitta CarrabTandlitta
  • 16-06-2016
  • Mathematics
Answered

What is the solution to the system of equations? Use the substitution method.

y-3x=7

21+9x=3y

AThere is no solution
BThere are an infinite number solutions
CThe solution is {1,10}
DThe solution is {28,0}

Verified Answer :

Bree102
Bree102 Bree102
  • 16-06-2016

THE solution is D.


you have 7 and 3 so commom multiple is 21
y-3*7=7

y-21=7

y=21+7

y=28

Answer Link

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