Step-by-step explanation:
Consider the following system of linear equations:
Equation 1:

Equation 2:

Adding 2 times equation 1 to equation 2, we get:

this is equivalent to:

this is equivalent to:

this is equivalent to:

solving for y, we obtain:

now, replacing this value in equation 2, we get:

this is equivalent to:

solving for 6x, we get:

solving for x, we obtain:

we can conclude that the correct answer is:
Answer:
The solution of the given system of equations is:

that is:

and
