anonymous
  • anonymous
A system of equations is given below: y = 4x − 3 2x + 7y = 41 Which of the following steps could be used to solve by substitution? 2(y = 4x − 3) + 7y = 41 4x − 3 = 2x + 7y 2x + 7(4x − 3) = 41 2(y = 4x − 3)
Mathematics
schrodinger
  • schrodinger
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Michele_Laino
  • Michele_Laino
from first equation we have y, since: \[\Large y = 4x - 3\]
Michele_Laino
  • Michele_Laino
now I replace y with 4x-3 into the second equation, so I get: \[\Large 2x + 7\left( {4x - 3} \right) = 41\]
anonymous
  • anonymous
medal me and I will guide you through it

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anonymous
  • anonymous
nvm
anonymous
  • anonymous
bye
Michele_Laino
  • Michele_Laino
hint: |dw:1437678290291:dw|

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