Question

I attached the photo below. Can you answer the question in written form?

Answer 1

The Solution:

Given:

We are required to solve for x and y by the Substitution Method.

Step 1:

Substitute the for y. This means we should equate both equations.

`3x+3=x-1`

Solving for x in the above linear equation, we get:

`\begin{gathered} 3x-x=-1-3 \\ \\ 2x=-4 \end{gathered}`

Divide both sides by 2.

`\begin{gathered} (2x)/(2)=(-4)/(2) \\ \\ x=-2 \end{gathered}`

Step 2:

Substitute -2 for x in any of the given equations.

`\begin{gathered} y=x-1 \\ y=-2-1 \\ y=-3 \end{gathered}`

Thus, the correct answer is (-2, -3)