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[tex] \left \{ {{x+y=13} \atop {8x+10y=120}} \right. [/tex]
[tex] \left \{ {{x-y=2} \atop {4x-5y=0}} \right. [/tex]
[tex] \left \{ {{x-y=4} \atop {-3x+2y= -2}} \right. [/tex]
Rezovlare sisteme
Ajutati'ma :*