Question

Помогите пожалуйста ❤️​

Answer 1

1.

y = 18 - 13x

2.

а) $\left \{ {{x=9} \atop {29x-y=11}} \right.$ ⇒$\left \{ {{x=9} \atop {29*9-y=11}} \right.$⇒$\left \{ {{x=9} \atop {261-y=11}} \right.$⇒$\left \{ {{x=9} \atop {-y=11-261}} \right.$⇒$\left \{ {{x=9} \atop {-y=-250}} \right.$⇒$\left \{ {x=9} \atop {y=250}} \right.$

Ответ: (9;250)

б) $\left \{ {{-10k=15} \atop {k+m=4}} \right.$⇒$\left \{ {{k=-1,5} \atop {-1,5+m=4}} \right.$⇒$\left \{ {{k=-1,5} \atop {m=4+1,5\\}} \right.$⇒$\left \{ {{k=-1,5} \atop {m=5,5}} \right.$

Ответ: (-1,5;5,5)

в) $\left \{ {{k=3,25} \atop {3,25+m=5}} \right.$⇒$\left \{ {{k=3,25} \atop {m=5-3,25}} \right.$⇒$\left \{ {{k=3,25} \atop {m=1,75}} \right.$

Ответ: (3,25;1,75)