Question

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Answer 1

Відповідь:

$\left \{ {{x=1} \atop {y=3}} \right.$

Пояснення:

$\left \{ {{6x-y-3=0} \atop {3x+y-6=0}} \right.\\\left \{ {{6x-3=y} \atop {y=-3x+6}} \right.\\\left \{ {{y=6x-3} \atop {y=-3x+6}} \right\\\right.\\\left \{ {{y=6x-3} \atop {6x-3=-3x+6}} \right$

$6x+3x=6+3\\9x=9\\x=9:9\\x=1\\y=6x-3=6*1-3=6-3=3$

$\left \{ {{x=1} \atop {y=3}} \right.$