Solve the system of linear equations:

[tex]\[
\begin{array}{c}
x + 3y = 2 \\
4x - 3y = 23
\end{array}
\][/tex]

The given system of equations has a solution [tex]\((x, y)\)[/tex]. What is the value of [tex]\(x\)[/tex]?

Choose one answer:
A. -1
B. 5
C. 7
D. 25



Answer :

To determine the value of [tex]\( x \)[/tex] in the given system of equations:

[tex]\[ \begin{cases} x + 3y = 2 \\ 4x - 3y = 23 \end{cases} \][/tex]

we will use the method of elimination. Here is the step-by-step solution:

1. First, we will add the two equations to eliminate [tex]\( y \)[/tex].

[tex]\[ (x + 3y) + (4x - 3y) = 2 + 23 \][/tex]

2. Combine like terms:

[tex]\[ x + 4x + 3y - 3y = 2 + 23 \][/tex]

This simplifies to:

[tex]\[ 5x = 25 \][/tex]

3. Solve for [tex]\( x \)[/tex] by dividing both sides by 5:

[tex]\[ x = \frac{25}{5} \][/tex]

[tex]\[ x = 5 \][/tex]

Thus, the value of [tex]\( x \)[/tex] is [tex]\( 5 \)[/tex]. The correct answer is (B) 5.

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