Question

select the correct answer.

to solve this system of equations using substitution, what could be substituted in place of (x) in the second equation?

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$$\begin{aligned} 2y + x &= 11 \\\\ 3x - y &= -4 \\end{aligned}$$

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• (2y - 11)
• (11 - 2y)
• (3x + 4)
• $\frac{y-4}{3}$

Explanation:

⚡ Using what you learned: solving systems by substitution

Step 1: Isolate \( x \) in the first equation

$$ 2y + x = 11 $$

$$ x = 11 - 2y $$

Step 2: Identify the substitution expression

The expression equal to \( x \) is:

$$ 11 - 2y $$

Answer:

\( 11 - 2y \)