IDNLearn.com connects you with experts who provide accurate and reliable answers. Explore a wide array of topics and find reliable answers from our experienced community members.

How many solutions does the system of equations below have?

[tex]\[
\begin{array}{c}
y = -x - 3 \\
2y + 2x = -6
\end{array}
\][/tex]

A. No solution
B. More than 1 solution
C. Exactly 1 solution
D. At least 1 solution


Sagot :

To determine how many solutions the given system of equations has, let's analyze and simplify the equations step by step.

The system of equations is:
[tex]\[ \begin{array}{c} y = -x - 3 \\ 2y + 2x = -6 \end{array} \][/tex]

First, let's simplify the second equation, [tex]\(2y + 2x = -6\)[/tex]:

1. Divide the entire equation by 2 to make it simpler:
[tex]\[ \frac{2y + 2x}{2} = \frac{-6}{2} \][/tex]
[tex]\[ y + x = -3 \][/tex]

So the second equation simplifies to:
[tex]\[ y + x = -3 \][/tex]

Now let's compare the simplified second equation with the first equation.
The first equation is:
[tex]\[ y = -x - 3 \][/tex]

Rewriting the first equation, we have:
[tex]\[ y + x = -3 \][/tex]

We see that the simplified second equation and the first equation are exactly the same:
[tex]\[ y + x = -3 \][/tex]

Since both equations represent the same line, they do not intersect in just one point or diverge; rather, they overlap completely.

This means the system of equations is dependent and represents the same line.

Therefore, the system has infinitely many solutions, which corresponds to more than 1 solution.

So, the answer is:
[tex]\[ \text{B. More than 1 solution} \][/tex]