Matematika 12

Greg Attwood, Jack Barraclough, Ian Bettison, Alistair Macpherson, Bronwen Moran, Su Nicholson, Diane Oliver, Joe Petran, Keith Bledger, Harry Smith, Geoff Staley, Robert Ward-Penny dhe Dave Wilkins

Pyetja

Zgjidh këto sisteme ekuacionesh.

  1. {3x2y+5=05(x+y)=6(x+1)\begin{cases} 3x-2y+5=0 \\ 5(x+y)=6(x+1) \end{cases}
  2. {x2y3=42x+3y+4=0\begin{cases} \dfrac{x-2y}{3}=4 \\ 2x+3y+4=0 \end{cases}
  3. {3y=5(x2)3(x1)+y+4=0\begin{cases} 3y=5(x-2) \\ 3(x-1)+y+4=0 \end{cases}