Question

Решить систему урав-я
<5х+2у=8
<3х-у=7

Answer 1

$\left \{ {{5x+2y=8} \atop {3x-y=7}} \right.$

$\left \{ {{5x+2y=8} \atop {6x-2y=14}} \right.$

$\left \{ {{11x=22} \atop {3x-y=7}} \right.$

$\left \{ {{x=2} \atop {y=3x-7}} \right.$

$\left \{ {{x=2} \atop {y=3*2-7}} \right.$

$\left \{ {{x=2} \atop {y=-1}} \right.$

Ответ: $(2;-1)$