Question

Please help me with this ​

Answer 1

i don't know if it's dependent or not cuz not native english speaker, but here's the answer

Explanation:

`\left \{ {{12x+3y=12} \atop {y=-4x+5}} \right.`
`\left \{ {{-4x-y=-4} \atop {4x+y=5}} \right.` ⇒ 0=1 (x; y) ∈ ∅