How many solutions does this linear system have? y = 2x – 5 –8x – 4y = –20

Step-by-step explanation:

Equations  have

1.unique solution if

2. infinite solutions if

3. no solution if

We can write equations: as follows:

On comparing these equations with standard equations , we get

such that

Here,

So, according to the facts explained above,

The given linear system has a unique solution i.e only one solution.

(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation: