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rachelmorten rachelmorten
  • 09-02-2015
  • Mathematics
Answered

Solve the simultaneous equation

3p+q=11

p+q=3

Verified Answer :

naǫ
naǫ naǫ
  • 09-02-2015

\(3p+q=11 \\ p+q=3 \ \ \ |\times (-1) \\ \\ 3p+q=11 \\ \underline{-p-q=-3} \\ 3p-p=11-3 \\ 2p=8 \\ p=\frac{8}{2} \\ p=4 \\ \\ p+q=3 \\ 4+q=3 \\ q=3-4 \\ q=-1 \\ \\ \boxed{(p,q)=(4,-1)}\)

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kakusya98 kakusya98
  • 09-02-2015

q=3-p
3p+(3-p)=11
2p=8
p=4

q=3-4
q=-1

Answer Link

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