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ciaomama0406 ciaomama0406
  • 13-02-2017
  • Mathematics
Answered

Equation P: y + z = 4

Equation Q: 3y + 7z = 15


What steps can be used to eliminate the y term?

Verified Answer :

SyntaxError
SyntaxError SyntaxError
  • 13-02-2017

\(y+z=4\\ 3y+7z=15\\ -3y-3z=-12\\ 3y+7z=-12\\ 4z=-24\\ z=-6\)

Multiply the top equation by -3 and added to the second one.

By Elimination.

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